Shortlist by what you need
Start here if you know why you are leaving ConvoStack.
Want the closest match?
NLPearlMost similar to ConvoStack in what it does, its category and its price.
Visit (opens NLPearl in a new tab)Need a free plan?
EHVAHas a free plan, rated 3.6 out of 5. ConvoStack has none.
Visit (opens EHVA in a new tab)Want the best rated?
GoodcallRated 4.1 out of 5 in our review, against 3.0 for ConvoStack.
Visit (opens Goodcall in a new tab)
At a glance
Green means better than ConvoStack, red means worse. Prices are starting prices per month.
| Tool | Our rating | Starts at | Free plan | Best for | Compare |
|---|---|---|---|---|---|
 ConvoStackBaseline | 3.0 | $9/mo | No | AI voice agents that answer business calls, capture structured details and hand off to people, with credit plans from $9 a month. | |
| NLPearl | 3.9+0.9 | $25/mo$16 more | No | AI phone agent that autonomously handles sales and support calls in multiple languages. | vs ConvoStack |
 Synthflow AI | 3.9+0.9 | Not listed | No | No-code voice AI priced per minute, built for appointment scheduling and lead qualification calls | vs ConvoStack |
 MarrLabs | 4.0+1.0 | Not listed | No | AI voice agents built to sound human for phone-based scheduling, sales, and customer service. | vs ConvoStack |
| Goodcall | 4.1+1.1 | $79/mo$70 more | No | Agentic voice AI that answers business phone lines, books appointments, and routes calls around the clock. | vs ConvoStack |
 Breezy Chat | 3.4+0.4 | $129/mo$120 more | No | AI customer service built specifically for booking businesses - answers calls before the second ring, reschedules appointments, and resolves 85% of questions automatically. | vs ConvoStack |
| EHVA | 3.6+0.6 | Free | YesConvoStack has none | AI phone agents at a stated 9 cents a minute, live in five days. | vs ConvoStack |
 Callconnect | 3.3+0.3 | $75/mo$66 more | 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 ConvoStack |
 Replicant | 4.0+1.0 | Not listed | No | Autonomous voice AI built to resolve complex contact-center calls end to end, not just triage them | vs ConvoStack |
The alternatives in detail
In order of how closely each one matches ConvoStack.
NLPearl
3.9$25/mo
vs ConvoStack$16 more+0.9
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
Synthflow AI
3.9Not listed
vs ConvoStack+0.9
No-code voice AI priced per minute, built for appointment scheduling and lead qualification calls.
- No-code voice AI builder for appointment scheduling and lead qualification calls
- Per-minute pricing on the voice engine, roughly $0.09/minute plus model costs
- Direct calendar and CRM integrations configurable without code
No-code setup makes voice automation accessible without an engineering team
Per-minute-plus-model pricing structure needs tracking to avoid surprise costs at scale
MarrLabs
4.0Not listed
vs ConvoStack+1.0
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
Goodcall
4.1$79/mo
vs ConvoStack$70 more+1.1
Agentic voice AI that answers business phone lines, books appointments, and routes calls around the clock.
- Dedicated local phone number with 24/7 agentic call answering
- Customizable skills and flows for handling caller requests
- Call transcription with intent and sentiment classification
Founder's background in Google Speech AI shows in call-handling accuracy
No permanent free plan, only a 14-day trial
Breezy Chat
3.4$129/mo
vs ConvoStack$120 more+0.4
AI customer service built specifically for booking businesses - answers calls before the second ring, reschedules appointments, and resolves 85% of questions automatically.
- Learns from a business's own website, policies, and brand voice
- Real booking-platform integration - reschedule, refund, resend tickets
- Intelligent escalation with full context handoff to staff
Purpose-built for booking businesses rather than a generic support bot
Starting price (£129/month) is a real cost for very small operators
EHVA
3.6Free
vs ConvoStack+0.6Free plan
AI phone agents at a stated 9 cents a minute, live in five days.
- AI phone agents for inbound and outbound calls
- Direct integration with CRM, PMS and EHR systems
- Insurance, hospitality, sales and appointment use cases
Publishes a per-minute rate, uncommon in usage-based voice AI pricing
Containment rate and payroll savings figures carry no stated methodology
Callconnect
3.3$75/mo
vs ConvoStack$66 more+0.3
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
Replicant
4.0Not listed
vs ConvoStack+1.0
Autonomous voice AI built to resolve complex contact-center calls end to end, not just triage them.
- Autonomous voice AI built to resolve complex customer calls end to end
- Handles multi-step processes like account changes, not just FAQ-style triage
- Founded in 2017 with an operating history in enterprise voice AI
Resolution-first design goes beyond the triage role most voice bots are limited to
Enterprise-only contract pricing means no self-serve option to test at small scale
FAQ
Questions people ask
Is ConvoStack free?
ConvoStack does not list a free plan. Paid plans start from $9/mo.
What is the best free alternative to ConvoStack?
EHVA is the highest-rated alternative here with a free plan (3.6 out of 5).
What is the cheapest alternative to ConvoStack?
Among paid plans, NLPearl has the lowest starting price (from $25/mo). If you need it free, start with EHVA.
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.