Callin vs Vapi (2026): which should you pick?
As of Nov 13, 2026, Callin and Vapi share a 2.2 GPA, neither has a free plan and their prices can't be set side by side, so the choice depends on whether you care more about ease of use, where Callin grades higher, or features, where Vapi does.
Checked Nov 12, 2026 and Nov 13, 2026 · graded Nov 12, 2026 and Nov 13, 2026 by ToolGPA
They get the same grade on value for money, the free plan and platforms.
Price, platforms and features side by side. The table says where each price was read and when.
Vapi
Developer platform for building and running voice AI agents
Which one is for you
Pick Callin if
- Fits if you resell AI phone agents under your own brand
- Works for small call volumes billed by the minute with no monthly fee
Look elsewhere if
- Tight if you run many calls: pay-as-you-go allows 5 at once, more needs the sales-only High Volume plan
- Watch out: the $0.029 per minute rate is a vendor-stated floor for custom plans, not a published price
- Skip it if you need many languages: eight are named on the About page
- Not for you if you want a free plan, as only 30 minutes are free
Pick Vapi if
- Fits if you are a developer who wants to choose each voice and model provider
- Makes sense if you want to pay for minutes as you use them
Look elsewhere if
- Pricey if you want one price, as model, voice and call charges sit on top of the $0.05 hosting
- Watch out: HIPAA-eligible handling is a $2,000 a month add-on
- Pricey if you grow, since Pro has a $999 a month minimum
- Watch out: extra lines cost $10 each and extra organisations $20 each a month
How we grade them
| 2.2GPACallinFair | 2.2GPAVapiFair | |
|---|---|---|
| Value for money | C$0.16 a minute with no monthly fee. The category sells mostly by the month, so it is hard to line up; the lower $0.029 figure is only a floor for custom plans. | CCore is $29 a month and hosting is $0.05 a minute, but the page's own 1,000-minute estimate is $82 to $129 a month, and Pro starts at $999. |
| Free plan and trial | C30 free minutes to start, with an account created straight away. A short trial, with no free plan after it. | C$5 in free credits to start. The page does not say whether a card is needed. |
| Features | CWhite-label platform, industry agents, its own voice engine, calendar and CRM links and bring-your-own carrier. 5 concurrent calls on pay-as-you-go. | BOrchestration, a choice of providers, testing and simulation, and telephony options. The core job of a voice agent is covered. |
| Ease of use | CNo store rating on record. You set up agents, connect calendars and CRM, and may bring a carrier. | DNo store rating, and the platform is built around API calls and provider settings. |
| Platforms and integrations | BWeb platform with Google Calendar, Cal.com, Salesforce, HubSpot, Zendesk, Zapier, n8n and Make listed. No desktop or phone app. | BWeb, with Twilio, Vonage, Telnyx, Deepgram, OpenAI, ElevenLabs and Daily listed. |
| Best for | white-label AI voice agents | developers building voice agents on their own stack |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: Callin and Vapi. How we grade
Where they differ
- Callin also covers workflow automation and appointment booking.
At a glance
| Callin | Vapi | |
|---|---|---|
| Pricing | Free trial | Free trial |
| Starts at | $0.16 per minute, no monthly fee | $29 per month (Core); usage-only starts at $0.05 per minute hosting |
| Free plan | None | None |
| Free trial | 30 free minutes to start | $5 in free credits to start; usage-only accounts then pre-pay for minutes. |
| Web | ||
| Made by | Callin.io | Vapi, Inc. |
| Price read from | callin.io | vapi.ai |
| Checked | Nov 13, 2026 | Nov 12, 2026 |
Worth knowing
Callin
- The pay-as-you-go plan allows 5 concurrent calls; more needs the sales-only High Volume plan.
- The $0.029 per minute rate is a vendor-stated floor for custom plans, not a published price.
- Voice languages named on the About page are English, Spanish, Italian, Portuguese, French, German, Dutch and Hindi.
Vapi
- Without a success package, hosting is $0.05 per minute, pre-paid, and Deepgram, model and voice costs are added on top; the page's 1,000-minute estimate is $82 to $129 a month.
- HIPAA-eligible data handling is a $2,000 per month add-on.
- Extra concurrent lines cost $10 per line per month and extra organizations $20 per organization per month.
- Twilio, Vonage and Telnyx call charges are billed by those providers, such as $0.008 per minute for Twilio inbound.
Key features
Callin
- White-label platform
- Partners add their own logo, brand colors and custom domain, so their clients see only the partner's brand, and set their own client prices.
- Industry agents
- Ready-made voice agents for property management, IT support tickets, real estate seller and buyer qualification, and EV and municipal services.
- Neuron 1.0 voice engine
- The vendor's own low-latency voice engine, which it says responds in under 176 milliseconds. The plan lists 10 more AI models alongside it.
- Calendar, CRM and automation links
- Integrations include Google Calendar, Cal.com, Salesforce, HubSpot, Zendesk, Zapier, n8n and Make, plus a REST API and webhooks.
- Bring your own carrier
- Calls can run over Callin's own numbers, Twilio, Telnyx or a SIP trunk.
Vapi
- Voice agent orchestration
- Configure voice, conversation flow, telephony and integrations for an agent, then deploy it behind a phone number or an API.
- Choice of providers
- The pricing calculator lets you pick the transcriber, language model and voice, for example Deepgram, OpenAI and ElevenLabs. Models are passed through at cost.
- Testing and simulation
- Calls can be simulated before they reach customers, and monitoring flags issues in live calls.
- Telephony options
- Vapi telephony and SIP, WebSockets and Daily WebRTC are listed as free transport; Twilio, Vonage and Telnyx are charged by those providers.
- Enterprise controls
- The site lists SSO, OAuth, RBAC and AI guardrails, and says SOC 2, HIPAA and PCI compliance are supported.
Plans
Callin
Pay-as-you-go$0
no monthly fee, then $0.16 per minute
White-label branding, custom domain, unlimited clients, 5 concurrent calls and bring-your-own carrier. 30 free minutes to start.
High VolumeCustom
Custom pricing with rates as low as $0.029 per minute, more concurrent calls, priority support and a custom SLA. Sold through sales.
Vapi
Core$29
per month, pre-paid, auto-renew
2 organizations, 5 included phone numbers, 10 concurrent calls, 30 days of raw data retention and email support.
Pro$999
per month minimum, 10% of the hosting fee
10 organizations, 30 concurrent calls, 180 days retention, RBAC, a dedicated Slack channel and a 99% uptime SLA.
PremierCustom
Direct sales only: higher limits, named support team, 99.9% uptime SLA, SSO and dedicated SIP.
Common questions
Which is cheaper, Callin or Vapi?
As of Nov 13, 2026, Callin starts at $0.16 per minute, no monthly fee, and Vapi starts at $29 per month (Core); usage-only starts at $0.05 per minute hosting.
Which has a free plan, Callin or Vapi?
As of Nov 13, 2026, neither Callin nor Vapi has a free plan. Both have a free trial.
More comparisons
How this page was made
- The verdict at the top follows a fixed rule. When both tools are in the same category and either is in our top three for it, the verdict follows that ranking: the higher-placed tool is our pick. The top three weigh who each tool suits as well as its grades, so a pick can go against the GPA. Otherwise the page does not pick one and says which grades higher: the higher GPA first; on a tie, the one with a free plan, then the one that starts cheaper in dollars a month, counted the same way for both; if they are still level, what the choice depends on.
- The grades are our own, from each tool’s review or report card. The GPA is their average.
- Prices, plans and platforms come from each tool’s listing. The table above says where each price was read and when.
- The differences and the answers to the questions are worked out from those listings.