Free Voiceflow alternatives: 6 apps ranked by verified data

Facts checked Nov 8, 2026AppBreakup editorialHow we rank

6 of the 8 Voiceflow alternatives we track can be used for free (free, open source, or with a free plan). Botpress, Yellow.ai and Tidio rank highest, with facts last verified Nov 8, 2026.

Quick comparison

#	App	Pricing	Verified price	Open source	Platforms	Verified facts	Score
1	Botpress	Free plan + paid	$150/month billed annually (Plus)	No	Web	7 of 7	68.8
2	Yellow.ai	Free plan + paid	$0.99 per resolution after free sessions	No	Web	5 of 5	61.8
3	Tidio	Free plan + paid	$24.17/month for 100 conversations (Starter)	No	Web, iOS, Android +2	6 of 6	51.2
4	Vapi	Free plan + paid	$29 per month (Core package)	No	Web	7 of 7	50.0
5	Retell AI	Free plan + paid	$0.07–$0.31 per minute	No	Web	5 of 5	49.0
6	Dify	Open source	$590 per workspace/year	Yes	Web, Self-hosted	4 of 4	42.3

1. BotpressTop pick
Best for: Support teams and agencies building AI agents that need custom logic and integrations
Free plan + paidWeb
68.8
score / 100
Why switch from Voiceflow
Another visual AI agent builder, with a free tier and a large community of developers.
Pros
Free plan for testing with real conversations
No per-seat fees on the Team plan and above
Visual studio plus a developer kit for custom logic
Large community on Discord and an open-source SDK
Cons
Paid plans start well above simple chat widgets
Conversation packs are added automatically once the quota is reached
Voice channel is only on the Enterprise plan
Visit Botpress Details and reviews
How this score is calculated
Editorial fit ×0.3100
Reviews ×0.363
Clicks (90 days) ×0.150
Freshness ×0.15100
Votes ×0.150
0 counted reviews, 0 up and 0 down votes. Full formula
Is Botpress a good Voiceflow alternative?
Verified facts
7 of 7 verified
Free plan
Yes, $0 with 100 conversations
Checked Nov 8, 2026botpress.com(opens source in a new tab)
Plus plan
$150/month billed annually
Checked Nov 8, 2026botpress.com(opens source in a new tab)
Pricing basis
Per conversation, not per seat
Checked Nov 8, 2026botpress.com(opens source in a new tab)
Security
SOC 2, GDPR compliant
Checked Nov 8, 2026botpress.com(opens source in a new tab)
GitHub repo licence
MIT
Checked Nov 2, 2026github.com(opens source in a new tab)
Starting price
$150/month billed annually (Plus)
Checked Nov 8, 2026botpress.com(opens source in a new tab)
Team plan
$750/month billed annually
Checked Nov 8, 2026botpress.com(opens source in a new tab)
2. Yellow.ai
Best for: Large enterprises automating support across voice, chat and email in many languages
Free plan + paidWeb
61.8
score / 100
Why switch from Voiceflow
Enterprise conversational AI with chat and voice agents and managed deployment.
Pros
Covers voice, chat, email and SMS in one platform
Large catalogue of ready-made enterprise integrations
Wide language support for voice agents
Free tier to try the builder before talking to sales
Cons
Enterprise pricing is quote-only
Free plan is limited to one agent and low volume
More complex to adopt than self-serve chatbot builders
Visit Yellow.ai Details and reviews
How this score is calculated
Editorial fit ×0.377
Reviews ×0.363
Clicks (90 days) ×0.150
Freshness ×0.15100
Votes ×0.150
0 counted reviews, 0 up and 0 down votes. Full formula
Is Yellow.ai a good Voiceflow alternative?
Verified facts
5 of 5 verified
Free plan
Yes, 500 sessions/month included
Checked Nov 8, 2026yellow.ai(opens source in a new tab)
Integrations
150+
Checked Nov 8, 2026yellow.ai(opens source in a new tab)
Models
15+ LLMs
Checked Nov 8, 2026yellow.ai(opens source in a new tab)
Voice languages
500+
Checked Nov 8, 2026yellow.ai(opens source in a new tab)
Usage price
$0.99 per resolution after free sessions
Checked Nov 8, 2026yellow.ai(opens source in a new tab)
3. Tidio
Best for: Small online stores that want chat, chatbots and an AI agent in one tool
Free plan + paidWeb, iOS, Android, macOS, Windows
51.2
score / 100
Why switch from Voiceflow
Live chat plus a ready-made AI support agent, simpler for small online shops.
Pros
Lyro AI agent and no-code chatbots built in
Strong Shopify and WordPress integrations
Free plan after the trial
Cons
Conversation-based pricing gets confusing
AI and Flows usage priced separately
Lighter ticketing and reporting than full help desks
Visit Tidio Details and reviews
How this score is calculated
Editorial fit ×0.341
Reviews ×0.363
Clicks (90 days) ×0.150
Freshness ×0.15100
Votes ×0.150
0 counted reviews, 0 up and 0 down votes. Full formula
Is Tidio a good Voiceflow alternative?
Verified facts
6 of 6 verified
Starting price
$24.17/month for 100 conversations (Starter)
Checked Nov 8, 2026tidio.com(opens source in a new tab)
Free trial
7 days
Checked Nov 8, 2026tidio.com(opens source in a new tab)
Free plan
Yes, $0/month
Checked Nov 8, 2026tidio.com(opens source in a new tab)
Platforms
Browser, Android, iOS, Windows, Mac
Checked Nov 8, 2026tidio.com(opens source in a new tab)
Growth plan
From $49.17/month for 250 conversations
Checked Nov 8, 2026tidio.com(opens source in a new tab)
Plus plan
From $300/month plus usage
Checked Nov 8, 2026tidio.com(opens source in a new tab)
4. Vapi
Best for: Developer teams that want to mix their own speech, LLM and voice providers in phone agents
Free plan + paidWeb
50.0
score / 100
Why switch from Voiceflow
Developer API for phone voice agents with your choice of speech and LLM providers, for teams whose Voiceflow work is mostly calls.
Pros
Choose your own transcriber, model and voice providers
Model costs passed through without markup
Built-in call testing, simulation and monitoring
Usage-only start with free credits and no minimum minutes
Cons
Total per-minute cost depends on several providers and is hard to predict
HIPAA support is a separate monthly add-on
Low-tier plans include only a few concurrent calls
Visit Vapi Details and reviews
How this score is calculated
Editorial fit ×0.338
Reviews ×0.363
Clicks (90 days) ×0.150
Freshness ×0.15100
Votes ×0.150
0 counted reviews, 0 up and 0 down votes. Full formula
Is Vapi a good Voiceflow alternative?
Verified facts
7 of 7 verified
Free credits
$5 to start
Checked Nov 8, 2026vapi.ai(opens source in a new tab)
Hosting fee
$0.05 per minute, models passed through at cost
Checked Nov 8, 2026vapi.ai(opens source in a new tab)
Core package
$29 per month
Checked Nov 8, 2026vapi.ai(opens source in a new tab)
Model pricing
Passed through at cost
Checked Nov 8, 2026vapi.ai(opens source in a new tab)
Compliance
SOC 2, HIPAA, PCI
Checked Nov 8, 2026vapi.ai(opens source in a new tab)
Starting price
$29 per month (Core package)
Checked Nov 8, 2026vapi.ai(opens source in a new tab)
Pro plan
$999 per month minimum
Checked Nov 8, 2026vapi.ai(opens source in a new tab)
5. Retell AI
Best for: Businesses and agencies building AI receptionists, schedulers or outbound call campaigns
Free plan + paidWeb
49.0
score / 100
Why switch from Voiceflow
Builds AI phone agents with a visual flow editor and telephony included, a close fit if Voiceflow mainly handles inbound calls.
Pros
No annual contract; pay only for minutes used
20 concurrent calls included on pay as you go
Ready-made features for transfers, booking and IVR navigation
Wide choice of LLMs and voice providers
Cons
Per-minute cost adds up from several components
SSO and role-based access only on the enterprise plan
Cloud-only; no self-hosted option
Visit Retell AI Details and reviews
How this score is calculated
Editorial fit ×0.334
Reviews ×0.363
Clicks (90 days) ×0.150
Freshness ×0.15100
Votes ×0.150
0 counted reviews, 0 up and 0 down votes. Full formula
Is Retell AI a good Voiceflow alternative?
Verified facts
5 of 5 verified
Voice agent price
$0.07–$0.31 per minute
Checked Nov 8, 2026retellai.com(opens source in a new tab)
Free credits
$10
Checked Nov 8, 2026retellai.com(opens source in a new tab)
Concurrent calls
20 included
Checked Nov 8, 2026retellai.com(opens source in a new tab)
Voice infrastructure fee
$0.055 per minute
Checked Nov 8, 2026retellai.com(opens source in a new tab)
Y Combinator
Accepted Nov 2023
Checked Nov 8, 2026retellai.com(opens source in a new tab)
6. Dify
Best for: Developers and teams building LLM chatbots, agents and RAG apps they can self-host
Open sourceSelf-hostableWeb, Self-hosted
42.3
score / 100
Why switch from Voiceflow
Open-source alternative you can self-host, with RAG and multi-step workflows.
Pros
Visual workflow builder with agents, tools and logic
Built-in knowledge base for answering from your own documents
Self-hostable Community Edition via Docker Compose
Works with many model providers
Cons
Licence adds conditions beyond a standard open-source licence
Steeper learning curve than simple no-code chatbot builders
Cloud free tier has small message and app quotas
Visit Dify Details and reviews
How this score is calculated
Editorial fit ×0.312
Reviews ×0.363
Clicks (90 days) ×0.150
Freshness ×0.15100
Votes ×0.150
0 counted reviews, 0 up and 0 down votes. Full formula
Is Dify a good Voiceflow alternative?
Verified facts
4 of 4 verified
Open source
Yes
Checked Nov 8, 2026docs.dify.ai(opens source in a new tab)
Self-hosting
Docker Compose
Checked Nov 8, 2026docs.dify.ai(opens source in a new tab)
Free plan
Sandbox, 200 message credits
Checked Nov 8, 2026dify.ai(opens source in a new tab)
Starting price
$590 per workspace/year
Checked Nov 8, 2026dify.ai(opens source in a new tab)

Quick comparison

1. BotpressTop pick

Pros

Cons

Verified facts

2. Yellow.ai

Pros

Cons

Verified facts

3. Tidio

Pros

Cons

Verified facts

4. Vapi

Pros

Cons

Verified facts

5. Retell AI

Pros

Cons

Verified facts

6. Dify

Pros

Cons

Verified facts