Synthflow
Voice platformQuote on requestVerified
Quote only
No volume priceSee its plans
Synthflow vs Vapi: pricing compared (2026)
Two voice platforms, priced at your call volume from each vendor's own pricing page.
See its plans
Vapi
Voice platformBills per minuteVerified
$45/mo
No success package (hosting)Pay per use
Quote only$45/moOnly Vapi publishes prices. Synthflow lists no price per call volume.
At your volume
Only Vapi publishes prices
Synthflow lists no price per call volume, so there is no price to set against Vapi's $45.
Cheapest to start
Vapi, from $0/mo
Pay as you go at $0.05/min. Synthflow lists no price per call volume.
What each price leaves out
One side has no price
Synthflow lists no price per call volume. Vapi: Model, voice and phone line are extra.
Cost as calls growMonthly cost as your calls grow
- Synthflow
- Vapi
| Calls a month | Synthflow | Vapi |
|---|---|---|
| 0 | No public price | $0 |
| 100 | No public price | $15 |
| 200 | No public price | $30 |
| 300 | No public price | $45 |
| 400 | No public price | $60 |
| 500 | No public price | $75 |
| 600 | No public price | $90 |
| 700 | No public price | $105 |
| 800 | No public price | $120 |
| 900 | No public price | $135 |
| 1,000 | No public price | $150 |
| Calls a month | Synthflow | Vapi |
|---|---|---|
| 0 | No public price | $0 |
| 100 | No public price | $15 |
| 200 | No public price | $30 |
| 300 | No public price | $45 |
| 400 | No public price | $60 |
| 500 | No public price | $75 |
| 600 | No public price | $90 |
| 700 | No public price | $105 |
| 800 | No public price | $120 |
| 900 | No public price | $135 |
| 1,000 | No public price | $150 |
Plans side by side
Features
| Feature | | |
|---|---|---|
| Books appointments | Yes | |
| SMS | Yes | |
| Outbound calls | Yes | |
| Recordings and transcripts | Yes | |
| Integrations | Cal.com, GoHighLevel, HubSpot, Salesforce, Zapier | |
| EU / GDPR | Yes | |
| Channels | Voice, WhatsApp |
- Yes
- Yes
- Yes
- Yes
- Cal.com, GoHighLevel, HubSpot, Salesforce, Zapier
- Yes
- Voice, WhatsApp
Both have: HIPAANot verified for either: live transfer, languages, human backup
Pick Synthflow if…
- You need appointment booking, SMS or outbound calls.
- You book or log calls in Cal.com, GoHighLevel or HubSpot.
Pick Vapi if…
- You want the lowest starting price: $0/mo for pay as you go at $0.05/min.
Questions
How does Synthflow pricing compare with Vapi?
At 300 calls of 3 minutes, Vapi is $45/mo. Synthflow lists no price per call volume, so there is no figure to set against it.
Does Synthflow or Vapi book appointments?
Synthflow: yes, appointment booking is recorded. Vapi: not verified.
Are the Synthflow and Vapi prices verified?
Synthflow: verified, read on its pricing page. Vapi: verified, read on its pricing page.
Where do these prices come from?
Each vendor's own pricing page. Synthflow: synthflow.ai, verified October 29, 2026. Vapi: vapi.ai, verified October 29, 2026. Synthflow pricing page · Vapi pricing page · How we collect prices
Does the Synthflow or Vapi per-minute price include the model, voice, and phone line?
Synthflow lists no price per call volume. Vapi: Model, voice and phone line are extra.
Are the links to Synthflow and Vapi affiliate links?
The Synthflow button goes to the vendor's own site and is not an affiliate link. The Vapi button is an affiliate link: we may earn a commission at no extra cost to you. Commissions never change how Toolcrew ranks vendors.
