# Synthflow alternatives after the move upmarket

> Synthflow now publishes only a $30,000/year enterprise plan. Here are the alternatives for agencies priced out, compared on published rates.

Source: https://www.centricallai.com/compare/synthflow-alternatives  
Markdown: https://www.centricallai.com/compare/synthflow-alternatives.md  
Updated: 2026-08-28

- [Part of: white label AI voice agent platform](https://www.centricallai.com/partners/white-label-licensing)

Quick answer: Synthflow now publishes a single enterprise plan with a $30,000 annual minimum. On published rates the alternatives run from $29 a month for two client accounts (VoiceAIWrapper) and $99 to $299 a month (Trillet) to $355 to $419 a month with 3,500 minutes included (Autocalls), or a one-time perpetual licence with no monthly platform fee (Centricall). Figures verified August 12, 2026.

Synthflow built much of its early following among agencies, and its pricing page today publishes a single enterprise plan with a $30,000 annual minimum commitment. The self-serve tiers that made it an easy first platform for a small agency are no longer listed.

If you are searching for an alternative, you are most likely one of two people: an agency that can no longer justify the entry point, or a buyer comparing options before committing. This page covers both, using figures taken from each vendor's own pricing page.

## At a glance

| Platform | Entry cost | Per-minute price | Client accounts |
| --- | --- | --- | --- |
| Synthflow | $30,000 per year minimum commitment, enterprise plan only. | Not published; scoped in the contract around call volume and concurrency. | Scoped in the contract. |
| Trillet | $99/mo Studio, $299/mo Agency. | $0.12 per minute beyond the 300 minutes included on Agency. | Up to 3 workspaces on Studio, unlimited on Agency. |
| Autocalls | $355 to $419 per month. | $0.09 per minute beyond the 3,500 minutes included. | Unlimited sub-accounts. |
| VoiceAIWrapper | $29 to $499 per month. | The underlying Vapi, Retell or Ultravox rate, billed by that platform on top. | 2 clients at $29, up to 20 at $499, then $10 to $15 each. |
| Vapi (build it yourself) | No monthly minimum; pay as you go. | $0.05 per minute platform fee, plus speech, model and telephony at provider rates. | Whatever you build; no agency tier published. |
| Retell AI (build it yourself) | Usage-billed; enterprise plan at custom pricing. | $0.07 to $0.31 per minute, all in. | Whatever you build; 20 concurrent calls included, then $8 per line per month. |
| Bolna (build it yourself) | Pay as you go, or a Pilots plan of 12,000 minutes. | 6.00 cents per minute standard, 4.51 cents at committed volume. | Whatever you build; bring-your-own-key model. |
| Ringg AI | Pay as you go, or Enterprise. | $0.10 per connected minute (₹6 in India), plus $5.99 a month per number. | No agency or white-label tier published. |
| Centricall | Hosted plans from $49/mo; perpetual license quoted per engagement. | $0.15 to $0.20 per minute overage on hosted plans; usage at provider cost under the license, with no platform fee. | Unlimited under the white-label license. |

Eight alternatives on published per-minute rates, read from each vendor's pricing page on August 12, 2026. Verify before quoting a client.

## What actually changed

Synthflow's pricing page now presents an enterprise plan only, with a $30,000 annual minimum and final pricing scoped around call volume, concurrency, telephony, integrations, security and launch support. Its documentation still describes agency accounts, sub-accounts and white-label features, so the capability has not disappeared. What has changed is the price of admission.

## The lesson worth taking from it

This is the structural risk of building a client book on a platform you rent. Your pricing to clients, your margin and your delivery all sit on top of a rate card the vendor controls. When it moves, you requote, absorb it, or migrate, and migration means rebuilding every client's agent. Nothing about that is unique to one vendor; it is what renting means.

- Ask for price-lock terms and a notice period before you sign
- Ask what happens to your client data and configuration if you leave
- Price your own offer so a 20 percent upstream increase does not erase your margin

## The option most comparisons leave out

Every alternatives list in this category compares one subscription against another. There is a fourth option: buy the platform outright. Centricall licenses its full source code as a one-time perpetual purchase, with no monthly platform fee and no share of your revenue. You host it, brand it, price it, and no vendor can restructure your economics afterwards because there is no vendor left in the loop.

## Frequently asked questions

### How much does Synthflow cost now?

Synthflow's pricing page publishes a single enterprise plan with a $30,000 annual minimum commitment, with final pricing scoped around call volume, concurrency, telephony setup, integrations, security needs and launch support. No self-serve tiers are listed. Verified August 12, 2026.

### Does Synthflow still support white label and agency sub-accounts?

Its documentation still describes agency accounts, sub-accounts and white-label features, so the capability exists. The change is commercial rather than technical: the published entry point is now a $30,000 annual commitment. Verified August 12, 2026.

### What is the cheapest Synthflow alternative for a small agency?

On published rates, VoiceAIWrapper starts at $29 per month for two client accounts and Trillet's Studio plan at $99 per month covers up to three workspaces. Trillet's $299 Agency plan is the usual step up for unlimited workspaces. Note that wrapper products sit on top of another platform's API, so you are exposed to two pricing structures. Verified August 12, 2026.

### Is there an alternative with no monthly platform fee at all?

A perpetual source-code license removes the recurring platform fee entirely: one payment, then you pay only your own hosting, telephony and model usage at provider rates. That is how Centricall licenses its platform. It suits operators building a book of clients rather than testing an idea.

### Should I migrate or stay?

Work out your all-in cost per client on your current platform and on the alternative, then add the cost of rebuilding every client agent and retraining your team. Migration is rarely worth it for a handful of accounts and is often decisive above twenty. Do the arithmetic before the sales call, not during it.

## Sources

- [Synthflow pricing](https://synthflow.ai/pricing): Verified August 12, 2026.
- [Trillet pricing](https://trillet.ai/pricing): Verified August 12, 2026.
- [Autocalls pricing](https://autocalls.ai/white-label): Verified August 12, 2026.
- [VoiceAIWrapper pricing](https://voiceaiwrapper.com/pricing): Verified August 12, 2026.
- [Vapi pricing](https://vapi.ai/pricing): Verified August 12, 2026.
- [Retell AI pricing](https://www.retellai.com/pricing): Verified August 12, 2026.
- [Bolna pricing](https://www.bolna.ai/pricing): Verified August 12, 2026.
- [Ringg AI pricing](https://www.ringg.ai/pricing): Verified August 12, 2026.

## Further reading

- [The reseller guide to white label](https://www.centricallai.com/article-and-insight/white-label-ai-voice-agents): How margins really work once a platform sets the floor on your pricing.
- [Reselling in the US](https://www.centricallai.com/locations/white-label-ai-voice-agent-usa): Where the TCPA liability actually sits, and the consent rule that no longer exists.
- [What reseller programs pay](https://www.centricallai.com/article-and-insight/ai-voice-agent-reseller-programs): The four partner models, and the contract terms that decide your margin.
- [Bolna's published rates](https://www.centricallai.com/compare/bolna-ai-pricing): Per-minute pricing and volume tiers for teams leaving an enterprise plan.

## Next step

Priced out of an enterprise minimum you never asked for? Book a call and we will scope what your actual call volume needs.

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