The short version
Vapi is an API/SDK-first platform for developers building voice AI in code. It's a great fit for engineering teams that want low-level control and are happy to build and maintain the app themselves.
How they compare
| CustomWeb | Vapi | |
|---|---|---|
| Who builds it | You — in a no-code builder; we host the runtime | Developers — via API/SDK in code |
| Channels | Phone + web chat + SMS in one agent | Voice (API) |
| Pricing model | Pay-as-you-go: per-minute / per-message fee, providers at cost | Usage-based, per minute |
| Bring your own provider keys | Yes | Yes |
| Booking, KB, analytics built in | Yes — calendar booking, knowledge base, dashboard | You assemble it |
| White-label / client portal | Built-in | Build your own |
Comparison reflects each platform's public positioning as of 2026 — check vendor sites for current details.
Features compared
| CustomWeb | Vapi | |
|---|---|---|
| Phone (voice) | ||
| Free phone number | Paid | |
| Web chat | ||
| SMS / text | ||
| No-code builder | ||
| Calendar booking built in | ||
| White-label / reseller |
Pricing compared
CustomWeb
- Entry price
- $0.03 / min voice · $0.003 / msg chat & SMS — provider usage at cost
- Subscription
- None — pay as you go
- Free to start
- $1 in free credits + a phone number, no card
One flat orchestration fee; LLM, voice, and telephony pass through at provider cost. Every account includes one phone number for testing.
Vapi
- Entry price
- $0.05 / min platform fee + provider pass-through
- Subscription
- None (usage-based; +$10/mo per concurrent line)
- Free to start
- 60+ minutes included, self-serve
Low base rate, but STT, LLM, TTS, and telephony bill separately on top.
Competitor pricing is each vendor's published rate as of June 2026 (or "contact sales" where none is listed) — check their site for current pricing. CustomWeb's rates are fixed and shown in full.
Why teams pick CustomWeb
No engineering required
Build, test, and launch from a dashboard — no SDK, no servers to run, no glue code to maintain.
Batteries included
Calendar booking, knowledge base, transcripts, recordings, and analytics ship in the box.
Beyond voice
The same agent also answers your website chat and SMS, from one knowledge base.
Who each is best for
CustomWeb is best for
Businesses that want a production agent fast, without building and hosting the app.
Vapi is best for
Engineering teams building a fully custom voice product in code.