Shortlist by what you need
Start here if you know why you are leaving Retell AI.
Want the closest match?
NLPearlMost similar to Retell AI in what it does, its category and its price.
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AjoxiFrom $6.39/mo, the lowest starting price here.
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VogentRated 4.0 out of 5 in our review, against 4.2 for Retell AI.
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At a glance
Green means better than Retell AI, red means worse. Prices are starting prices per month.
| Tool | Our rating | Starts at | Free plan | Best for | Compare |
|---|---|---|---|---|---|
 Retell AIBaseline | 4.2 | Free | Yes | Phone-call AI agents at roughly 600 milliseconds of latency | |
| NLPearl | 3.9−0.3 | $25/mo | No | AI phone agent that autonomously handles sales and support calls in multiple languages. | vs Retell AI |
 Insighto AI | 3.8−0.4 | Not listed | No | AI phone calling at $0.06/minute plus omnichannel chat (SMS, WhatsApp, email) across 50+ languages - CRM-integrated, pay only for what you use. | vs Retell AI |
 Callconnect | 3.3−0.9 | $75/mo | No | Answers business calls in under 2 seconds, 24/7, and blocks 97.8% of spam automatically - AI voice agents that book appointments and qualify leads without a human on the line. | vs Retell AI |
 Replify | 3.7−0.5 | Not listed | No | An AI receptionist built for gyms specifically, formerly HeyLibby. | vs Retell AI |
| Ajoxi | 3.6−0.6 | $6.39/mo | No | Cloud phone system with an AI receptionist, AI contact center and website chatbot | vs Retell AI |
| Vogent | 4.0−0.2 | Not listed | No | Voice agents at 200ms latency, with counterfactual analysis on past calls. | vs Retell AI |
 JustCall | 4.0−0.2 | $29/mo | No | Built sales-prospecting dialers and support calling into the same platform | vs Retell AI |
 MarrLabs | 4.0−0.2 | Not listed | No | AI voice agents built to sound human for phone-based scheduling, sales, and customer service. | vs Retell AI |
The alternatives in detail
In order of how closely each one matches Retell AI.
NLPearl
3.9$25/mo
vs Retell AI−0.3
AI phone agent that autonomously handles sales and support calls in multiple languages.
- Pearl AI voice agent for autonomous inbound and outbound calling
- CRM and phone system integrations for call routing
- Multilingual conversation handling for global call center coverage
Handles full call transactions autonomously rather than routing to a human at the first complex request
No free tier, so testing the product requires committing to a paid plan
Insighto AI
3.8Not listed
vs Retell AI−0.4
AI phone calling at $0.06/minute plus omnichannel chat (SMS, WhatsApp, email) across 50+ languages - CRM-integrated, pay only for what you use.
- AI inbound and outbound phone calling
- Omnichannel chat: SMS, WhatsApp, email, live chat
- 50+ language support with real-time responses
Pay-as-you-go phone pricing fits fluctuating call volume better than a flat fee
Healthcare/insurance deployment carries real compliance obligations to verify yourself
Callconnect
3.3$75/mo
vs Retell AI−0.9
Answers business calls in under 2 seconds, 24/7, and blocks 97.8% of spam automatically - AI voice agents that book appointments and qualify leads without a human on the line.
- Answers calls in under 2 seconds, 24/7
- Direct calendar and CRM integration for live appointment booking
- 97.8% automatic spam-call blocking
Real, specific performance metric (97.8% spam blocking) rather than a vague claim
Starting price (£75/month) is a real cost for very small operations
Replify
3.7Not listed
vs Retell AI−0.5
An AI receptionist built for gyms specifically, formerly HeyLibby.
- AI receptionist across calls, SMS, email and live chat
- Outbound sales and lead qualification
- Billing and collections automation
Built for one vertical, so it already knows the business
Automated collections calling raises TCPA and FDCPA questions for you
Ajoxi
3.6$6.39/mo
vs Retell AI−0.6
Cloud phone system with an AI receptionist, AI contact center and website chatbot.
- Cloud phone system with calling, SMS, video, fax and team chat
- AI receptionist and an AI assistant for every rep
- AI contact center and a website chatbot for order status and returns
Phone, messaging and AI support share one system and one login
The $6.39 entry price is per user and billed annually
Vogent
4.0Not listed
vs Retell AI−0.2
Voice agents at 200ms latency, with counterfactual analysis on past calls.
- No-code Flow Builder for agent design
- Counterfactual analysis against real past calls
- Knowledge bases, functions and call transfers
Counterfactual analysis evaluates changes against real calls
No pricing figures published
JustCall
4.0$29/mo
vs Retell AI−0.2
Built sales-prospecting dialers and support calling into the same platform.
- Power dialers and predictive dialing for sales prospecting
- Inbound call handling with AI voice agents and IVR
- SMS, MMS, and WhatsApp messaging in the same platform
Combines sales-prospecting dialers and support call handling in one platform
No permanent free plan, only a 14-day trial
MarrLabs
4.0Not listed
vs Retell AI−0.2
AI voice agents built to sound human for phone-based scheduling, sales, and customer service.
- Sub-second (660ms) voice response latency
- Task-specific agent configurations for scheduling, mortgage, and sales
- Real-time regulatory compliance enforcement during calls
Founders bring direct speech-tech pedigree from building Siri's underlying technology
No published pricing complicates budget comparison against other voice AI vendors
FAQ
Questions people ask
Is Retell AI free?
Retell AI has a free plan.
What is the cheapest alternative to Retell AI?
Among paid plans, Ajoxi has the lowest starting price (from $6.39/mo).
How did you pick these alternatives?
We match tools on what they do, their category and their price, using the details in our directory. Ratings come from our reviews and reader reviews.