Honest comparison
Phonevoice vs Synthflow
Both ship no-code AI voice agents. Here is how Phonevoice combines a visual flow editor with a real developer API.
| Dimension | Phonevoice | Synthflow |
|---|---|---|
| Flow editor | Visual call-flow / IVR Studio with publish workflow + per-key branching. | Visual builder. |
| Developer API | Full REST API, signed webhooks, click-to-call widget, browser SDK. | API access on higher tiers. |
| Pricing | Per-minute EUR + €10 welcome credit. BYOT keys supported. | Subscription tiers + per-minute. |
| French voices | Curated FR voices. | Voice catalogue. |
| Hosting / RGPD | EU stack, French invoicing. | Multi-region. |
| Browser + phone | Same agent works on phone calls and in the browser via click-to-call. | Phone-centric. |
Why teams pick Phonevoice over Synthflow
Builder + API, not either-or
Build your flow visually in Studio, then export and orchestrate it through the REST API. No paywall.
EUR pay-as-you-go
No subscription floor — pay strictly per minute. €10 welcome credit covers the first calls.
Browser-native delivery
Drop the click-to-call widget on any page; the agent answers in the browser without a phone line.
Try Phonevoice in 5 minutes
Free account, pay-as-you-go, no commitment. Place your first AI call in under 5 minutes.