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CallAnswerDesk vs Vapi

Vapi: API-first voice AI infrastructure. Built for developers (api-first).

Verdict

Vapi is infrastructure for engineers who want to wire STT, LLM and TTS themselves. CallAnswerDesk ships the whole receptionist — booking, messages, QA scores — without code, and the software is free.

CallAnswerDesk has, Vapi doesn't fully
6 features
Vapi has, CallAnswerDesk doesn't fully
5 features
Price
Free vs $0 + $5 credit; Core $29/mo
Features

Side by side

✓ yes · ~ partial, paid add-on or higher tier · ✗ no · ? not verified. Competitor data from public pages, 24 Oct 2026.

FeatureCallAnswerDeskVapi
Answers inbound calls
~Browser calls + web chat today; phone numbers coming soon
✓
Outbound calls / campaigns
✗Coming soon (needs phone numbers)
✓
Phone number included
✗Coming soon
✓1 free, 5 on Core
SIP trunk / bring your own carrier
✗Coming soon
✓Free
Books appointments in a calendar
✓Built-in calendar with conflict checks; Google/Outlook sync coming soon
~Via tools
Answers FAQs from a knowledge base
✓
✓
Live transfer to staff
✗Coming soon (needs phone numbers)
✓
Call recording + transcripts
✓Transcripts for every conversation; browser call recording
✓
AI call summaries
✓
✓
WhatsApp in the same plan
✗Coming soon
✗
Web chat in the same plan
✓Included, free
✓Web widget
Caller can interrupt (barge-in)
✓In browser calls
✓
QA score on every call
✓0–100 rubric + hot/warm/cold lead score
~Evals(unverified)
Analytics / cost dashboard
✓Per-conversation speech/voice/AI cost
✓
CRM sync
✓HubSpot, Zoho (your token), signed webhook
~Via tools
No-code flow builder
✓
~Dashboard + Workflows
Vertical templates
✓Clinics, salons, real estate, restaurants, auto service
~
API + webhooks
✓REST + signed webhooks
✓
Free trial / free test calls
✓Product is free; browser test calls free
~$5 credit
Pricing

What you pay

CallAnswerDesk
Free software. Phone numbers and WhatsApp are coming soon, at exact cost with no markup.
Software, every featureFree
Browser test calls, web chatFree
Phone minutesComing soon
WhatsApp messagesComing soon

Ex-GST/VAT.

Vapi
From their public pricing page
Entry price
$0 + $5 credit; Core $29/mo
Per minute
$0.05/min platform + pass-through; their 1,000-min example ≈ $0.08–0.13/min all-in
Source: vapi.ai/pricing
Fair is fair

Where Vapi is better

If these matter most to you, Vapi may be the right pick.

Vapi's genuine strengths
  • Maximum flexibility: pick any STT, LLM and voice provider
  • Fast (536 ms in one 3rd-party test)
  • Free telephony/SIP; 1 free number
  • Large developer community
  • Answers inbound calls (CallAnswerDesk: Browser calls + web chat today; phone numbers coming soon)
  • Outbound calls / campaigns (CallAnswerDesk: Coming soon (needs phone numbers))
  • Phone number included — 1 free, 5 on Core (CallAnswerDesk: Coming soon)
  • SIP trunk / bring your own carrier — Free (CallAnswerDesk: Coming soon)
  • Live transfer to staff (CallAnswerDesk: Coming soon (needs phone numbers))
What Vapi users complain about
  • –Unpredictable total cost — 5 vendors' pass-through
  • –Frequent incidents reported (trackers conflict: 42 to 309 since Sep 2024)
  • –Slow support (~1 week waits, Trustpilot)
  • –HIPAA add-on $2,000/mo; developer-only

Review summaries are directional; several sources are competitor blogs.

Sources: Vapi pricing · IsDown outage history · Trustpilot

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