What are the main differences between Stonly and Voiceflow?

Stonly excels in Exceptional ease of use - 4.8/5 G2 rating with intuitive visual editor praised in 32 reviews and Deep help desk integrations - bidirectional Zendesk, Salesforce, Freshdesk, ServiceNow connections, scoring 96/100 in user ratings with 71% accuracy. Voiceflow leads in Visual workflow builder enables non-technical teams to build complex agents and Real-time collaboration features rival Figma - 10+ people editing simultaneously with 90/100 overall rating and 88% accuracy. Key technical difference: Stonly focuses on Interactive step-by-step guides with decision trees while Voiceflow emphasizes Visual workflow canvas with drag-and-drop blocks. Pricing differs by $209/month.

Which is better for enterprises: Stonly or Voiceflow?

Stonly offers SOC 2 compliance for enterprise security. HIPAA compliance is available in Stonly. For scalability, both offer cloud-based deployment options. Stonly leads with 96/100 enterprise readiness score (92/100 enterprise features).

How much does Stonly cost vs Voiceflow?

Stonly starts at $249/monthly (enterprise model), while Voiceflow begins at $40/monthly (freemium model). Both offer free tiers to get started. This represents a significant price difference of $209/month. See our detailed pricing breakdown for complete tier comparisons.

Can I migrate from Voiceflow to Stonly?

Migration from Voiceflow to Stonly typically requires API-based data export/import, which Stonly provides. Stonly provides comprehensive API access good documentation for the migration process. Estimated migration time: 1-2 days for cloud setup. Contact Stonly support for migration assistance and best practices.

What integrations do Stonly and Voiceflow support?

Stonly integrates with Zendesk (deep bidirectional integration), Salesforce Service Cloud, Freshdesk, ServiceNow, Zapier webhooks (form submissions, guide completions) (9 integrations total). Voiceflow supports Zendesk, Salesforce, HubSpot, Intercom, Slack (15 integrations available). Both offer REST APIs for custom integrations. Voiceflow provides 67% more integrations, with webhook support for real-time data sync.

What are the main differences between Stonly and Voiceflow?

Stonly offers strong capabilities, scoring 0/100 in user ratings. Voiceflow provides unique strengths with 0/100 overall rating. Key technical difference: Stonly focuses on advanced features while Voiceflow emphasizes specialized capabilities.

Which is better for enterprises: Stonly or Voiceflow?

Both platforms provide enterprise-grade security. HIPAA compliance varies - contact vendors for details. For scalability, both offer cloud-based deployment options. Voiceflow leads with strong/100 enterprise readiness score.

How much does Stonly cost vs Voiceflow?

Stonly starts at custom pricing/month (subscription model), while Voiceflow begins at contact sales/month (subscription model). Both require paid plans. Pricing is relatively comparable. See our detailed pricing breakdown for complete tier comparisons.

Can I migrate from Stonly to Voiceflow?

Migration from Stonly to Voiceflow typically requires manual data transfer since API access may be limited. Voiceflow offers standard documentation for the migration process. Estimated migration time: 1-2 days for cloud setup. Contact Voiceflow support for migration assistance and best practices.

What integrations do Stonly and Voiceflow support?

Stonly integrates with (multiple platforms). Voiceflow supports (various tools). API availability varies by plan. Integration coverage is comparable.

Stonly vs Voiceflow

Make an informed decision with our comprehensive comparison. Discover which RAG solution perfectly fits your needs.

More about Voiceflow More about Stonly Get Started Today

Priyansh KhodiyarDevRel at CustomGPT.ai

Fact checked and reviewed by Bill Cava

Published: 01.04.2025Updated: 25.04.2025

In this comprehensive guide, we compare Stonly and Voiceflow across various parameters including features, pricing, performance, and customer support to help you make the best decision for your business needs.

Overview

When choosing between Stonly and Voiceflow, understanding their unique strengths and architectural differences is crucial for making an informed decision. Both platforms serve the RAG (Retrieval-Augmented Generation) space but cater to different use cases and organizational needs.

Quick Decision Guide

Choose Stonly if: you value exceptional ease of use - 4.8/5 g2 rating with intuitive visual editor praised in 32 reviews
Choose Voiceflow if: you value visual workflow builder enables non-technical teams to build complex agents

About Stonly

Stonly is interactive knowledge base platform with enterprise ai-powered answers. Stonly is a customer support knowledge management platform with embedded AI capabilities focused on interactive step-by-step guides and help desk agent assistance. Its AI Answers feature (Enterprise-only add-on) achieves 71% self-serve success rates, but it's fundamentally a knowledge base platform with AI features—not a pure RAG-as-a-Service solution. Founded in 2017, headquartered in San Francisco, CA, the platform has established itself as a reliable solution in the RAG space.

Overall Rating

96/100

Starting Price

$249/mo

About Voiceflow

Voiceflow is collaborative ai agent building platform for teams. Voiceflow is a collaborative workflow-first platform for building, deploying, and scaling AI agents. Born from Alexa skill development (2017-2019), it evolved into a full-stack agent platform with visual canvas design, function calling, and enterprise-grade observability. Used by Mercedes-Benz, JP Morgan, and 200K+ teams. Founded in 2017, headquartered in Toronto, Canada, the platform has established itself as a reliable solution in the RAG space.

Overall Rating

90/100

Starting Price

$40/mo

Key Differences at a Glance

In terms of user ratings, Stonly in overall satisfaction. From a cost perspective, Voiceflow offers more competitive entry pricing. The platforms also differ in their primary focus: Knowledge Management versus AI Agent Platform. These differences make each platform better suited for specific use cases and organizational requirements.

⚠️ What This Comparison Covers

We'll analyze features, pricing, performance benchmarks, security compliance, integration capabilities, and real-world use cases to help you determine which platform best fits your organization's needs. All data is independently verified from official documentation and third-party review platforms.

Detailed Feature Comparison

Stonly	Voiceflow	CustomGPTRECOMMENDED
Data Ingestion & Knowledge Sources
✅ PDF uploads & public website crawling – Zendesk help center content indexing supported ✅ Proprietary interactive guide format – Primary content model with visual editor ⚠️ No cloud storage integrations – Missing Google Drive, Dropbox, Notion, SharePoint, YouTube Content limits: Basic (5 guides, 400 views/mo), Small Business (unlimited, 4K views/mo), Enterprise (custom)	Knowledge Base (KB) – RAG-powered retrieval: PDF, Word, CSV, plain text uploads Website crawling – Sitemap ingestion, auto-sync Google Drive, Notion, Confluence, Zendesk (Pro+) ✅ No explicit document limits, scales by storage tier ⚠️ Accuracy concerns – Reviews cite KB "often inaccurate" and "too general"	1,400+ file formats – PDF, DOCX, Excel, PowerPoint, Markdown, HTML + auto-extraction from ZIP/RAR/7Z archives Website crawling – Sitemap indexing with configurable depth for help docs, FAQs, and public content Multimedia transcription – AI Vision, OCR, YouTube/Vimeo/podcast speech-to-text built-in Cloud integrations – Google Drive, SharePoint, OneDrive, Dropbox, Notion with auto-sync Knowledge platforms – Zendesk, Freshdesk, HubSpot, Confluence, Shopify connectors Massive scale – 60M words (Standard) / 300M words (Premium) per bot with no performance degradation
L L M Model Options
⚠️ Undisclosed proprietary LLM – No model selection or transparency on provider ✅ AI Profiles (20) & Custom Instructions (100) – Define tone, boundaries, behavior ✅ Guided AI Answers – Predefined responses for sensitive scenarios bypass AI ✅ Knowledge-grounded approach – Anchored responses reduce hallucinations vs generic chatbots	Multi-model support – GPT-4, GPT-3.5, Claude, Gemini per agent/step configuration Function calling – GPT-4/Claude support with custom model API integration Prompt controls – System prompts, few-shot examples, temperature/token controls per request ✅ Cost optimization via model routing, RAG auto-augments LLM prompts	GPT-5.1 models – Latest thinking models (Optimal & Smart variants) GPT-4 series – GPT-4, GPT-4 Turbo, GPT-4o available Claude 4.5 – Anthropic's Opus available for Enterprise Auto model routing – Balances cost/performance automatically Zero API key management – All models managed behind the scenes
Performance & Accuracy
✅ 71% self-serve success rate – Company data with AI Answers feature ✅ 70-76% ticket reduction – Documented in case studies ✅ 99.9% uptime claimed – No published SLA or response time details ⚠️ Flow reports update every 15 min – Not real-time analytics	Response times – 200-500ms simple, 1-2s complex; 99.9% SLA (Enterprise) Accuracy claims – GoStudent case: 98% accuracy on 100K conversations Hallucination prevention – RAG grounding, confidence thresholds, source citations ⚠️ KB accuracy concerns – Reviews cite "often inaccurate", manual preprocessing required	Sub-second responses – Optimized RAG with vector search and multi-layer caching Benchmark-proven – 13% higher accuracy, 34% faster than OpenAI Assistants API Anti-hallucination tech – Responses grounded only in your provided content OpenGraph citations – Rich visual cards with titles, descriptions, images 99.9% uptime – Auto-scaling infrastructure handles traffic spikes
Developer Experience ( A P I & S D Ks)
✅ REST API – User provisioning, content management, widget control ✅ Mobile SDKs (Enterprise only) – iOS, Android, React Native, Flutter ⚠️ No Python/Node.js SDKs – No GraphQL, OpenAPI specs, or API sandbox	REST API & SDKs – JavaScript/TypeScript, Python, GraphQL API for queries API capabilities – Send messages, manage state, retrieve transcripts, update KB Custom code blocks – JavaScript execution within workflows, rate limits 10K/hour (Pro) ✅ Comprehensive docs, 15K+ community (Discord/Slack), Postman/OpenAPI specs	REST API – Full-featured for agents, projects, data ingestion, chat queries Python SDK – Open-source `customgpt-client` with full API coverage Postman collections – Pre-built requests for rapid prototyping Webhooks – Real-time event notifications for conversations and leads OpenAI compatible – Use existing OpenAI SDK code with minimal changes
Integrations & Channels
✅ Deep help desk integrations – Zendesk, Salesforce Service Cloud, Freshdesk, ServiceNow ✅ Zapier integration – Webhook triggers for form submissions and completions ✅ Analytics integrations – Segment, Google Analytics ⚠️ No messaging integrations – Missing Slack, WhatsApp, Telegram, Microsoft Teams	15+ native integrations – Zendesk, Salesforce, HubSpot, Intercom, Slack, Teams, Freshdesk Messaging & voice – WhatsApp, SMS, Alexa, Google Assistant, custom telephony E-commerce – Shopify, Stripe, Zapier, Make.com (5000+ apps), Calendly ✅ Custom integrations via unlimited HTTP API blocks, webhooks, iOS/Android SDKs	Website embedding – Lightweight JS widget or iframe with customizable positioning CMS plugins – WordPress, WIX, Webflow, Framer, SquareSpace native support 5,000+ app ecosystem – Zapier connects CRMs, marketing, e-commerce tools MCP Server – Integrate with Claude Desktop, Cursor, ChatGPT, Windsurf OpenAI SDK compatible – Drop-in replacement for OpenAI API endpoints LiveChat + Slack – Native chat widgets with human handoff capabilities
Customization & Branding
✅ Visual no-code editor – Intuitive interface for guides, decision trees, forms ✅ CSS customization on all paid plans – White-labeling Enterprise only ✅ Small learning curve – Users create guides in under 30 minutes ⚠️ Cannot edit on mobile devices – Desktop-only guide creation	Visual widget editor – Custom colors, logos, fonts, button styles, bubble positioning White-labeling – Remove branding (Team+), custom domains (Pro+), CSS injection ✅ Dynamic personalization via user attributes, multi-channel customization, configurable tone/prompts	Full white-labeling included – Colors, logos, CSS, custom domains at no extra cost 2-minute setup – No-code wizard with drag-and-drop interface Persona customization – Control AI personality, tone, response style via pre-prompts Visual theme editor – Real-time preview of branding changes Domain allowlisting – Restrict embedding to approved sites only
Core Knowledge Base Features
✅ Interactive step-by-step guides – Visual flow builder with branching logic ✅ Decision trees, checklists, forms – Contact forms and lead capture ✅ Content versioning – Side-by-side comparison, instant restore (Business+) ✅ Multi-language support – Auto-translation on Enterprise plan	N/A	N/A
A I Answers Feature ( Enterprise Only)
⚠️ Enterprise add-on only – Not included in Small Business plan ✅ Generative AI grounded – Anchored in Stonly guides, websites, PDFs ✅ Confidence-based fallback – Switches to ML-powered search when confidence low ✅ 71% self-serve success rate – Hallucination reduction through knowledge-grounding	N/A	N/A
Observability & Monitoring
✅ Insights Dashboard – Views, visitors, bounce rates, drop-off analysis ✅ NPS surveys (all plans) – CSAT and CES Enterprise only ✅ Data export – Segment, Zapier, Google Analytics integration	Analytics dashboard – Sessions, users, messages, completion rates, drop-off visualization Conversation funnels – Journey mapping with full transcript viewer Error tracking – Monitor API failures, timeouts, unhandled intents real-time ✅ User feedback (thumbs/CSAT/NPS), CSV/JSON export, Datadog/New Relic webhooks	Real-time dashboard – Query volumes, token usage, response times Customer Intelligence – User behavior patterns, popular queries, knowledge gaps Conversation analytics – Full transcripts, resolution rates, common questions Export capabilities – API export to BI tools and data warehouses
Pricing & Scalability
Basic (Free): 5 guides, 400 views/mo, 1 seat, single language Small Business ($249/mo, $199/mo annual): Unlimited guides, 4K views/mo, 5 seats, CSS customization Enterprise (~$39K/year avg): Custom views, unlimited seats, AI Answers add-on, Mobile SDKs, SAML SSO ⚠️ Overage pricing escalates – +15K views = $200/mo, auto-upgrade after 2 months	Sandbox (Free) – 2 agents, unlimited interactions, 3 collaborators Pro: $50/month – 10 agents, unlimited interactions, 10 collaborators Team: $625/month – 50 agents, 25 collaborators, API, version control, RBAC Enterprise: Custom – Unlimited agents, SSO, SOC 2, SLA, dedicated support ⚠️ Pricing complexity – Per-seat ($15-25) + per-agent ($20-50) charges escalate quickly	Standard: $99/mo – 60M words, 10 bots Premium: $449/mo – 300M words, 100 bots Auto-scaling – Managed cloud scales with demand Flat rates – No per-query charges
Security & Privacy
✅ SOC 2 Type 2, GDPR, HIPAA, ISO 27001 – PCI, CSA Star Level 1 compliant ✅ Trust Center – trust.stonly.com with security documentation, subprocessor lists ✅ SAML 2.0 SSO (Enterprise) – IP allowlisting, advanced RBAC, 2FA	SOC 2 Type II certified – GDPR compliant, HIPAA ready (Enterprise) Encryption – AES-256 at rest, TLS 1.3 in transit, zero-retention policy SSO/SAML – Okta/Azure AD, RBAC (Team+), audit logs (Enterprise) ✅ On-premise deployment, EU data residency, DPA, IP whitelisting, key rotation	SOC 2 Type II + GDPR – Third-party audited compliance Encryption – 256-bit AES at rest, SSL/TLS in transit Access controls – RBAC, 2FA, SSO, domain allowlisting Data isolation – Never trains on your data
Support & Ecosystem
✅ 4.8/5 G2 rating (132 reviews) – Ease of use praised in 32 reviews ✅ Email and chat support – Dedicated support on Enterprise plan ✅ Pre-built templates – Quick onboarding, guides created in under 30 minutes	Founded 2017 – $28M funding (Felicis, OpenAI Startup Fund, Tiger Global) 200K+ teams – Mercedes-Benz, JP Morgan, Shopify; 15K+ developer community Support tiers – Community (Free), priority email (Pro), chat (Team), 24/7 CSM (Enterprise) ✅ 100+ templates, Academy certifications, comprehensive docs, partner program	Comprehensive docs – Tutorials, cookbooks, API references Email + in-app support – Under 24hr response time Premium support – Dedicated account managers for Premium/Enterprise Open-source SDK – Python SDK, Postman, GitHub examples 5,000+ Zapier apps – CRMs, e-commerce, marketing integrations
No- Code Interface & Usability
✅ 4.8/5 ease of use rating – Visual drag-and-drop editor, no coding required ✅ Small learning curve – Non-technical teams productive quickly ✅ Pre-built templates – Common scenarios covered for faster creation	Visual canvas builder – Drag-and-drop 50+ blocks, 80% no-code coverage Collaboration – 10+ simultaneous editors, real-time cursor tracking, comments Testing tools – Built-in chat simulator, one-click channel deployment ✅ Ease of use 8.7/10 (G2), 100+ templates, Academy certifications	2-minute deployment – Fastest time-to-value in the industry Wizard interface – Step-by-step with visual previews Drag-and-drop – Upload files, paste URLs, connect cloud storage In-browser testing – Test before deploying to production Zero learning curve – Productive on day one
R A G-as-a- Service Assessment
⚠️ NOT a RAG-as-a-Service platform – Knowledge base tool with embedded AI ⚠️ Limited data sources – PDF, public web, Zendesk only ✅ Strong hallucination controls – Grounded in structured content Best for: Customer support ticket deflection, not flexible RAG backends	Platform Type – WORKFLOW-FIRST with RAG capabilities, NOT pure RAG-as-a-Service Core Architecture – Visual canvas (50+ blocks) combining intent-based + RAG hybrid RAG Integration – KB with vector search (Qdrant) + GPT-4, secondary to workflows Developer Experience – REST API, JS/Python SDKs, custom code blocks, GraphQL ⚠️ RAG Limitations – KB "often inaccurate", no RAG parameter configuration, manual preprocessing	Platform type – TRUE RAG-AS-A-SERVICE with managed infrastructure API-first – REST API, Python SDK, OpenAI compatibility, MCP Server No-code option – 2-minute wizard deployment for non-developers Hybrid positioning – Serves both dev teams (APIs) and business users (no-code) Enterprise ready – SOC 2 Type II, GDPR, WCAG 2.0, flat-rate pricing
Competitive Positioning
✅ Unique interactive guide format – Structured support content vs free-form chat ✅ 70-76% ticket reduction – 71% self-serve success rate documented vs CustomGPT: Different categories (knowledge base vs RAG-as-a-Service) Target: Support teams using Zendesk/Salesforce, not RAG developers	Market position – Workflow-first platform (founded 2017, $28M funding) for orchestration Target customers – Enterprise teams (200K+ users: Mercedes-Benz, JP Morgan) needing multi-agent workflows Key competitors – Botpress, Rasa, Microsoft Power Virtual Agents, NOT RAG tools Competitive advantages – 50+ blocks, 10+ real-time collab, 15+ integrations, SOC 2/GDPR/HIPAA ✅ Free Sandbox, Pro $50/month reasonable for startups, best for workflows ⚠️ Use case fit – Ideal complex workflows, NOT simple document Q&A	Market position – Leading RAG platform balancing enterprise accuracy with no-code usability. Trusted by 6,000+ orgs including Adobe, MIT, Dropbox. Key differentiators – #1 benchmarked accuracy • 1,400+ formats • Full white-labeling included • Flat-rate pricing vs OpenAI – 10% lower hallucination, 13% higher accuracy, 34% faster vs Botsonic/Chatbase – More file formats, source citations, no hidden costs vs LangChain – Production-ready in 2 min vs weeks of development
A I Models
⚠️ Undisclosed Proprietary LLM – No model selection or transparency ✅ AI Profiles (20) & Custom Instructions (100) – Define tone and boundaries ✅ Guided AI Answers – Predefined responses for sensitive scenarios ✅ Knowledge-grounded approach – Anchored responses reduce hallucinations	Multi-model support – GPT-4, GPT-3.5, Claude, Gemini per agent/step selection Function calling – GPT-4/Claude real-time action triggering during conversations Custom model integration – Proprietary LLM API support, temperature/token controls (0.0-2.0) ✅ Cost optimization routing: GPT-3.5 simple, GPT-4 complex queries	OpenAI – GPT-5.1 (Optimal/Smart), GPT-4 series Anthropic – Claude 4.5 Opus/Sonnet (Enterprise) Auto-routing – Intelligent model selection for cost/performance Managed – No API keys or fine-tuning required
R A G Capabilities
✅ AI Answers (Enterprise add-on) – Grounded in guides, websites, PDFs ✅ 71% self-serve success rate – Confidence-based fallback to ML search ⚠️ Limited data sources – No Google Drive, Dropbox, Notion, SharePoint, YouTube ⚠️ Manual content updates – No automatic syncing from external sources	Knowledge Base – RAG vector search, semantic matching (PDF, Word, CSV, text) Website crawling – Sitemap ingestion, auto-sync Google Drive, Notion, Confluence, Zendesk Multi-turn context – Conversation preservation across sessions for coherent dialogues ⚠️ Accuracy concerns – Reviews cite KB "often inaccurate", "too general" ⚠️ No RAG controls – Cannot configure chunking, embeddings, similarity thresholds	GPT-4 + RAG – Outperforms OpenAI in independent benchmarks Anti-hallucination – Responses grounded in your content only Automatic citations – Clickable source links in every response Sub-second latency – Optimized vector search and caching Scale to 300M words – No performance degradation at scale
Use Cases
✅ Customer support ticket deflection – 70-76% reduction through interactive guides ✅ Deep help desk integration – Zendesk, Salesforce, Freshdesk, ServiceNow workflows ✅ Interactive onboarding – Step-by-step guides, decision trees, checklists ✅ Multi-language support – Auto-translation for global teams (Enterprise)	Complex workflows – API orchestration, multi-agent coordination, sophisticated logic Team collaboration – 10+ simultaneous editors with real-time tracking/comments Voice assistants – Alexa, Google Assistant, custom telephony conversational AI Customer service – 15+ integrations (Zendesk, Salesforce, HubSpot, Intercom) automation E-commerce – Shopify orders, product recommendations, lead gen with Calendly/CRM ⚠️ NOT ideal for – Simple document Q&A (KB accuracy issues)	Customer support – 24/7 AI handling common queries with citations Internal knowledge – HR policies, onboarding, technical docs Sales enablement – Product info, lead qualification, education Documentation – Help centers, FAQs with auto-crawling E-commerce – Product recommendations, order assistance
Security & Compliance
✅ SOC 2 Type 2, GDPR, HIPAA, ISO 27001 – PCI, CSA Star Level 1 ✅ Trust Center – trust.stonly.com with documentation, subprocessor lists ✅ SAML 2.0 SSO (Enterprise) – IP allowlisting, advanced RBAC, 2FA ⚠️ Data residency not documented – May limit certain jurisdiction deployments	SOC 2 Type II – GDPR compliant, HIPAA ready (Enterprise), EU data residency Encryption – AES-256 at rest, TLS 1.3 in transit, zero-retention SSO/SAML – Okta, Azure AD, OneLogin; RBAC (Team+), audit logs (Enterprise) ✅ On-premise deployment for data sovereignty, DPA available	SOC 2 Type II + GDPR – Regular third-party audits, full EU compliance 256-bit AES encryption – Data at rest; SSL/TLS in transit SSO + 2FA + RBAC – Enterprise access controls with role-based permissions Data isolation – Never trains on customer data Domain allowlisting – Restrict chatbot to approved domains
Pricing & Plans
Basic (Free): 5 guides, 400 views/mo, 1 seat, single language Small Business ($249/mo, $199/mo annual): Unlimited guides, 4K views/mo, 5 seats, CSS customization Enterprise (~$39K/year avg): Custom views, unlimited seats, white-label, SAML SSO, Mobile SDKs ⚠️ Overage pricing: +15K views = $200/mo, auto-upgrade after 2 consecutive months	Sandbox (Free) – 2 agents, unlimited interactions, 3 collaborators Pro: $50/month – 10 agents, unlimited interactions, 10 collaborators, GPT-4/Claude Team: $625/month – 50 agents, 25 collaborators, API, version control, RBAC Enterprise: Custom – Unlimited agents, SSO, SOC 2, HIPAA, SLA, on-premise ⚠️ Per-seat charges – Additional editors $50/month (Pro), $15-25/month (Team)	Standard: $99/mo – 10 chatbots, 60M words, 5K items/bot Premium: $449/mo – 100 chatbots, 300M words, 20K items/bot Enterprise: Custom – SSO, dedicated support, custom SLAs 7-day free trial – Full Standard access, no charges Flat-rate pricing – No per-query charges, no hidden costs
Support & Documentation
✅ 4.8/5 G2 rating (132 reviews) – Ease of use praised consistently ✅ Email and chat support – Dedicated support on Enterprise plan ✅ Pre-built templates & tutorials – Guides created in under 30 minutes	Founded 2017 – $28M funding (Felicis, OpenAI Startup Fund, Tiger Global) 200K+ teams – Mercedes-Benz, JP Morgan, Shopify; 15K+ developer community Support tiers – Community (Free), priority email (Pro), chat (Team), 24/7 CSM (Enterprise) ✅ 100+ templates, comprehensive docs, Academy certifications, partner program	Documentation hub – Docs, tutorials, API references Support channels – Email, in-app chat, dedicated managers (Premium+) Open-source – Python SDK, Postman, GitHub examples Community – User community + 5,000 Zapier integrations
Limitations & Considerations
⚠️ NOT a RAG-as-a-Service platform – Knowledge base tool with embedded AI ⚠️ AI Answers Enterprise-gated – ~$39K/year, not available on $249/mo tier ⚠️ Limited data sources – PDF, web, Zendesk only; no cloud storage ⚠️ No messaging integrations – Missing Slack, WhatsApp, Telegram, Microsoft Teams Not ideal for: Pure RAG API, multi-tenant SaaS backends, model customization needs	⚠️ KB accuracy issues – Reviews cite "often inaccurate", not ideal document Q&A ⚠️ Workflow-first platform – Excels orchestration, lags specialized RAG platforms ⚠️ Steep learning curve – Weeks onboarding despite visual interface ⚠️ Pricing complexity – Per-seat/agent fees escalate beyond base costs ⚠️ Visual canvas overwhelm – Complex agents (100+ blocks) difficult to manage ⚠️ SOC 2 Enterprise-only – No SLA guarantees on Pro/Team tiers	Managed service – Less control over RAG pipeline vs build-your-own Model selection – OpenAI + Anthropic only; no Cohere, AI21, open-source Real-time data – Requires re-indexing; not ideal for live inventory/prices Enterprise features – Custom SSO only on Enterprise plan
Core Agent Features
✅ Knowledge-grounded responses – Verified structured knowledge prevents hallucinations ✅ AI Agent Assist – Summarizes tickets, suggests paths, drafts responses ✅ Process automation – Define workflows linked to back-office tools ✅ 71% self-serve success rate – Personalized knowledge adapts to needs	Agent step (2024) – Autonomous AI with tool use, decision-making, KB access Multi-agent orchestration – Supervisor pattern connecting specialized agents for conversation aspects Hybrid architecture – Hard business logic + Agent networks for flexibility Human handoff – Smooth transitions with full history transfer to support/sales Lead capture & CRM – Auto-create in HubSpot/Salesforce/Pipedrive, update deal stages	Custom AI Agents – Autonomous GPT-4/Claude agents for business tasks Multi-Agent Systems – Specialized agents for support, sales, knowledge Memory & Context – Persistent conversation history across sessions Tool Integration – Webhooks + 5,000 Zapier apps for automation Continuous Learning – Auto re-indexing without manual retraining
Additional Considerations
⚠️ Limited UI customization – Cannot fully match specific brand requirements ⚠️ No offline access – Requires internet connectivity for guide availability ⚠️ Performance degradation with large guides – Scalability concerns with complexity ⚠️ View-based pricing – Additional fees for exceeding 4K views/mo	Workflow-first platform – Excels complex workflows, KB accuracy lags RAG specialists Best use case – Multi-step API orchestration, team collaboration; NOT document Q&A ⚠️ Steep learning curve – Weeks onboarding despite visual interface ⚠️ Visual canvas overwhelm – Complex agents (100+ blocks) difficult to manage ⚠️ Pricing escalation – Per-seat/agent fees escalate beyond base costs quickly ⚠️ SOC 2 Enterprise-only – No SLA guarantees on lower tiers	Time-to-value – 2-minute deployment vs weeks with DIY Always current – Auto-updates to latest GPT models Proven scale – 6,000+ organizations, millions of queries Multi-LLM – OpenAI + Claude reduces vendor lock-in
Core Chatbot Features
✅ Interactive step-by-step guides – Visual flow builder with branching logic ✅ Decision trees and checklists – Task management with progress tracking ✅ Contact forms and lead capture – Integrated customer information collection ✅ Multi-language support – Auto-translation on Enterprise plan	Visual workflow canvas – 50+ drag-and-drop blocks (text, cards, buttons, forms, APIs) Multi-turn conversations – Context preservation across sessions with full transcript logging Agent handoff – Multi-agent routing, human handoff with context transfer 100+ languages – Intent recognition, entity extraction, slot filling via NLU ✅ Analytics dashboard: sessions, users, completion rates, drop-offs, A/B testing	✅ #1 accuracy – Median 5/5 in independent benchmarks, 10% lower hallucination than OpenAI ✅ Source citations – Every response includes clickable links to original documents ✅ 93% resolution rate – Handles queries autonomously, reducing human workload ✅ 92 languages – Native multilingual support without per-language config ✅ Lead capture – Built-in email collection, custom forms, real-time notifications ✅ Human handoff – Escalation with full conversation context preserved
Customization & Flexibility ( Behavior & Knowledge)
✅ CSS and HTML customization – Change layout and look with custom code ✅ Intuitive no-code tools – Easy customization without coding for basics ✅ Personalized content – Use customer data for targeted experiences ✅ Rich media support – Images, GIFs, videos, annotations	Real-time updates – Workflow changes deploy instantly, no rebuild required Version control – Git-style versioning, rollback, Dev/Staging/Prod environments (Team+) Component reusability – Save sections, 100+ templates, dynamic KB syncing ✅ Task-specific flows, multi-language routing, user segmentation by custom attributes	Live content updates – Add/remove content with automatic re-indexing System prompts – Shape agent behavior and voice through instructions Multi-agent support – Different bots for different teams Smart defaults – No ML expertise required for custom behavior

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Final Thoughts

Final Verdict: Stonly vs Voiceflow

After analyzing features, pricing, performance, and user feedback, both Stonly and Voiceflow are capable platforms that serve different market segments and use cases effectively.

When to Choose Stonly

You value exceptional ease of use - 4.8/5 g2 rating with intuitive visual editor praised in 32 reviews
Deep help desk integrations - bidirectional Zendesk, Salesforce, Freshdesk, ServiceNow connections
Strong compliance - SOC 2 Type 2, GDPR, HIPAA, ISO 27001, PCI, CSA Star Level 1

Best For: Exceptional ease of use - 4.8/5 G2 rating with intuitive visual editor praised in 32 reviews

When to Choose Voiceflow

You value visual workflow builder enables non-technical teams to build complex agents
Real-time collaboration features rival Figma - 10+ people editing simultaneously
Function calling and API integrations allow true action-taking agents

Best For: Visual workflow builder enables non-technical teams to build complex agents

Migration & Switching Considerations

Switching between Stonly and Voiceflow requires careful planning. Consider data export capabilities, API compatibility, and integration complexity. Both platforms offer migration support, but expect 2-4 weeks for complete transition including testing and team training.

Pricing Comparison Summary

Stonly starts at $249/month, while Voiceflow begins at $40/month. Total cost of ownership should factor in implementation time, training requirements, API usage fees, and ongoing support. Enterprise deployments typically see annual costs ranging from $10,000 to $500,000+ depending on scale and requirements.

Our Recommendation Process

Start with a free trial - Both platforms offer trial periods to test with your actual data
Define success metrics - Response accuracy, latency, user satisfaction, cost per query
Test with real use cases - Don't rely on generic demos; use your production data
Evaluate total cost - Factor in implementation time, training, and ongoing maintenance
Check vendor stability - Review roadmap transparency, update frequency, and support quality

For most organizations, the decision between Stonly and Voiceflow comes down to specific requirements rather than overall superiority. Evaluate both platforms with your actual data during trial periods, focusing on accuracy, latency, ease of integration, and total cost of ownership.

📚 Next Steps

Ready to make your decision? We recommend starting with a hands-on evaluation of both platforms using your specific use case and data.

• Review: Check the detailed feature comparison table above
• Test: Sign up for free trials and test with real queries
• Calculate: Estimate your monthly costs based on expected usage
• Decide: Choose the platform that best aligns with your requirements

Last updated: January 18, 2026 | This comparison is regularly reviewed and updated to reflect the latest platform capabilities, pricing, and user feedback.

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Priyansh Khodiyar

DevRel at CustomGPT.ai. Passionate about AI and its applications. Here to help you navigate the world of AI tools and make informed decisions for your business.

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