The Synthflow Insider’s Guide
Everything we know about Synthflow in one document: what it costs, its grades, getting a refund, getting help and what else to look at. Read it here, or keep a copy.
Synthflow
The Insider’s Guide
Enterprise AI voice agents sold on annual contracts
Every plan, grade, refund rule and rival among AI agents, read from Synthflow’s own pages.
Made by Synthflow AI · checked Nov 12, 2026 · toolgpa.com
Contents
- 01WelcomeWhat it is, who it suits, its grades and the ten things to know first
- 02What it costsEvery plan, the free plan, ways to pay less and how prices have moved
- 03What it doesIts main features, where it runs, what it works with and who makes it
- 04Where it standsIts grades against its category, and whether to keep it or make your own
- 05The alternativesThe tools it is most often weighed against, side by side
- 06Quick answersThe questions people ask about it, each answered in a line or two
- 07About ToolGPAWho made this guide, what else is on the site, and how to cite it
ToolGPA put this guide together from Synthflow’s own pages, its app-store listings and our grades. Every fact in it is on Synthflow’s page too, where it is kept up to date. Checked Nov 12, 2026.
Part 01 · Overview
Welcome
What it is, who it suits, its grades and the ten things to know first
1.8
GPA, above 11 of the 101 other AI agents we grade
Synthflow is an AI voice agent platform for mid-market and enterprise teams that automate customer phone calls. Each deployment is scoped into one annual agreement covering telephony, integrations, security review and launch support, with white-label options for BPOs.
To get you started, here are 7 things to know about Synthflow, taken from its own pages and our grades.
The pricing page says there is no free plan, no trial and no per-minute rate, and HIPAA is listed as self-attested.
- 1
Best for companies that will sign an annual voice-agent contract
Synthflow sells AI voice agents for calls, with white labelling and launch support, only on annual enterprise agreements.
- 2
It runs on Web
Web.
- 3
Voice agents for calls
Agents handle customer service, reception, answering service, concierge, appointment booking and IVR use cases over the phone.
- 4
Telephony options
The contract can use Synthflow Native Telephony, SIP trunking or approved enterprise telephony, with routing, escalation and fallback logic.
- 5
White label
BPOs and software platforms can run it under their own brand, with a workspace per client and one analytics dashboard across them.
- 6
A 1.8 GPA, above 11 of 101
That is against the other AI agents we grade, on value, the free plan, features, ease of use and platforms.
- 7
Keep it
To replace Synthflow you would be making an AI agent, with the models and the safeguards behind it. That is not a weekend's work, with an AI app builder or without one.
Synthflow at a glance
- Pricing
- Paid
- Free plan
- No
- Free trial
- None stated
- Runs on
- Web
- Made by
- Synthflow AI
- Category
- AI Agents
- Our grade
- 1.8 GPA, weak
The report card
Best for companies that will sign an annual voice-agent contract
Synthflow sells AI voice agents for calls, with white labelling and launch support, only on annual enterprise agreements. The pricing page says there is no free plan, no trial and no per-minute rate, and HIPAA is listed as self-attested.
| Subject | Grade | Comment |
|---|---|---|
| Value for money | C | No price is published. The pricing page says it is an annual enterprise agreement with no per-minute rate. |
| Free plan and trial | F | No free plan and no trial, in the vendor's own words. |
| Features | C | Voice agents, telephony options, white labelling and launch support. The listing shows no published usage caps. |
| Ease of use | C | No store rating on record, and every deployment starts as an enterprise rollout. |
| Platforms and integrations | B | Web, with Cal.com, Five9, Zoom, HubSpot, Salesforce and Zapier listed. |
An A is worth 4 points, a B 3, a C 2, a D 1 and an F nothing. The GPA is the average of the five.
Who Synthflow is for
- Fits if you want white-label voice agents under one annual contract
- Makes sense if you use Five9, Salesforce or HubSpot
Who it is not for
- Not for you if you want to try it, as the page says no free plan and no trial
- Skip it if you are a small business, since every deployment starts on an Enterprise contract
- Not for you if you want per-minute pricing, because the page says there is none
- Watch out: HIPAA is self-attested in the vendor's own Trust Center summary
Good to know
Good for
- Mid-market and enterprise teams automating inbound customer calls
- BPOs and software platforms that need white-label voice agents for clients
Worth knowing
- No prices are published. The pricing page says it is an annual enterprise agreement with no free plan, no trial and no per-minute rate.
- Every new deployment starts on an Enterprise contract, so it is not set up for self-serve small-business use.
- HIPAA is listed as self-attested in the vendor's own Trust Center summary.
Part 02 · Pricing
What it costs
Every plan, the free plan, ways to pay less and how prices have moved
Synthflow's current pricing could not be confirmed from its own site.
The pricing page says it is an annual enterprise agreement with no per-minute rate.
We could not confirm Synthflow’s current prices from its own site, so this guide lists no plans. synthflow.ai has them.
Part 03 · Features
What it does
Its main features, where it runs, what it works with and who makes it
1
Place it runs: Web
Enterprise AI voice agents sold on annual contracts. Here is what it does, as its own site describes it, and what it covers: public API, AI features, AI agents, business phone line.
Voice agents, telephony options, white labelling and launch support.
- Voice agents for calls
- Agents handle customer service, reception, answering service, concierge, appointment booking and IVR use cases over the phone.
- Telephony options
- The contract can use Synthflow Native Telephony, SIP trunking or approved enterprise telephony, with routing, escalation and fallback logic.
- White label
- BPOs and software platforms can run it under their own brand, with a workspace per client and one analytics dashboard across them.
- Launch support
- Where the agreement includes it, Synthflow's forward-deployed engineers implement, test and launch agents with your team. Deployments go live in weeks.
- Security and compliance
- The Trust Center lists SOC 2 Type 2, ISO 27001, GDPR, HIPAA (self-attested) and PCI DSS v4.0.1, with ISO 42001, DORA and the EU AI Act in progress.
Where it runs
- Web
What it works with
- Cal.com
- Five9
- Zoom
- HubSpot
- Salesforce
- Zapier
Synthflow is made by Synthflow AI.
Part 04 · Standing
Where it stands
Its grades against its category, and whether to keep it or make your own
11/101
Other AI agents it is graded above
Synthflow's GPA of 1.8 is higher than 11 of the 101 other AI agents we grade, and level with 14.
It stands best on platforms and integrations (B, above 20 of 101) and worst on free plan and trial (F, above 0).
Each grade against the category
Every bar is all 102 AI agents we grade, cut by the letter each got. Synthflow’s own letter is outlined.
- CValue for moneyAbove 17 of 101
- FFree plan and trialAbove 0 of 101
- CFeaturesAbove 1 of 101
- CEase of useAbove 14 of 101
- BPlatforms and integrationsAbove 20 of 101
Keep it, or make your own?
Whether this is something you could build for yourself with an AI app builder, and what you would give up.
Keep it
To replace Synthflow you would be making an AI agent, with the models and the safeguards behind it. That is not a weekend's work, with an AI app builder or without one.
That makes this kind of software worth paying for, not this one in particular: 76 of the 101 other AI agents grade higher.
What you could not
- An AI agent, with the models and the safeguards behind it.
- Phone numbers and calls carried over the phone network.
- It plugs into other products, Cal.com, Five9 and Zoom among them, and has an API.
- What a company asks for before it lets staff use something: SOC 2 and HIPAA.
What this rests on. Synthflow’s listing: what it does, where it runs, what it plugs into and what it costs. It is a judgement about the kind of software this is. We have not built a replacement for it, and making your own means looking after it too. How we decide, and every tool’s verdict.
Part 05 · Alternatives
The alternatives
The tools it is most often weighed against, side by side
Vapi, Retell AI, Bland AI, Thoughtly and Parloa
The 5 tools Synthflow is most often weighed against, with where each one differs from it.
- 2.2GPA
Vapi
Free trial · from $29/mo
Developer platform for building and running voice AI agents.
- Synthflow also covers business phone line.
- 2.4GPA
Retell AI
Free trial · from $0
Pay-per-minute platform for AI phone and chat agents.
- Synthflow also covers business phone line.
- Retell AI also covers chatbots.
- 2.2GPA
Bland AI
Free trial · from $0
AI phone agents with one all-in per-minute rate.
- Synthflow also covers business phone line.
- Bland AI also covers chatbots.
- 1.8GPA
Thoughtly
Paid
AI voice, SMS and email agents for inbound lead conversion.
- Synthflow also covers business phone line.
- Thoughtly also covers workflow automation and voice cloning.
- 1.8GPA
Parloa
Paid
AI agent platform for enterprise customer service.
- Synthflow also covers business phone line.
- Parloa also covers no-code and AI support agent.
Part 06 · Questions
Quick answers
The questions people ask about it, each answered in a line or two
11
Questions, each answered in a line or two
The short version of everything above, for when you only need the answer. Each one is told in full in its part of the guide.
Is Synthflow free?
No. Synthflow is a paid product.
What platforms does Synthflow work on?
Synthflow is available on Web.
Does Synthflow have an Android app?
No Android app was listed when its pages were read on Nov 12, 2026. Synthflow is listed for Web.
Does Synthflow have an iPhone app?
No iPhone app was listed when its pages were read on Nov 12, 2026. Synthflow is listed for Web.
Is Synthflow open source?
Synthflow is not described as open source on its own site, as read on Nov 12, 2026.
Does Synthflow have an API?
Yes. Synthflow offers a public API, according to its own site.
What does Synthflow integrate with?
Synthflow's listing names Cal.com, Five9, Zoom, HubSpot, Salesforce and Zapier.
Who makes Synthflow?
Synthflow is made by Synthflow AI.
What are the alternatives to Synthflow?
The closest alternatives to Synthflow in our directory are Vapi, Retell AI, Bland AI, Thoughtly and Parloa.
How does Synthflow compare with other AI agents?
Synthflow's GPA of 1.8 is higher than 11 of the 101 other AI agents we grade, and level with 14.
Could I make my own version of Synthflow?
To replace Synthflow you would be making an AI agent, with the models and the safeguards behind it.
Where this guide comes from
The prices, plans, platforms and features were read from Synthflow’s own pages on Nov 12, 2026, and the grades were given on Nov 12, 2026. Graded from this listing, whose facts were read from Synthflow's own pages on 12 November 2026. Not based on using the product, and shorter than our full reviews.
Every tool we list gets five grades, A to F, each with its reason, and a GPA that averages them. How each is decided is at toolgpa.com/grades. This guide is ToolGPA’s own work; it is not made, paid for or approved by Synthflow AI. Prices change, so check synthflow.ai before you buy.
Part 07 · About
About ToolGPA
Who made this guide, what else is on the site, and how to cite it
5,038
Tools graded, in 95 categories
ToolGPA grades software the way a school report grades a pupil: five subjects, a letter for each with the reason written beside it, and a GPA that averages them. Prices, plans and platforms are read from each maker’s own pages and dated, so you always know how fresh a figure is.
Every grade, review and ranking on ToolGPA is our own judgement. No company can pay for a grade or change one. Every tool on the site has a guide like this one, free to download and pass on. It all lives at toolgpa.com.
5,038
tools graded
95
categories
739
price changes on record
579
apps priced in 12 countries
What else is on toolgpa.com
- Synthflow, kept up to dateEverything in this guide, with prices and grades as they are todaytoolgpa.com/tools/synthflow
- How grades are givenThe rules behind every letter and every GPAtoolgpa.com/grades
- Value chartsWhat each tool costs against what it scores, for every categorytoolgpa.com/charts
- CompareAny two tools side by side, plan by plantoolgpa.com/compare
- Price changesEvery price rise and cut on record, each with its sourcetoolgpa.com/price-changes
- Prices by countryWhat apps cost on the App Store in 12 countriestoolgpa.com/prices-by-country
- Pay lessEvery public discount: yearly billing, students, nonprofitstoolgpa.com/save
- Keep or makeWhich tools are worth paying for, and which you could build yourselftoolgpa.com/keep-or-make
Scan for the live page
Prices and grades as they are today
Quoting this guide?
Please name ToolGPA and link to the live page, so readers can check the figures for themselves:
ToolGPA, "Synthflow: The Insider's Guide", checked Nov 12, 2026. https://toolgpa.com/tools/synthflow
Know someone choosing between AI agents?
Send them this guide: toolgpa.com/tools/synthflow/guide
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See our other guides
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- AI Agents Insider's GuideEvery one of the 102 AI agents we grade, compared
- Genspark Insider's GuideAI workspace with an agent for research, slides, sheets and docs3.2 GPA
- Manus Insider's GuideGeneral AI agent for research, slides, websites and browser tasks3.2 GPA
- OpenClaw Insider's GuideOpen-source personal AI agent you run yourself and message in chat3.2 GPA
Choosing software? Every tool graded, every price dated.
Compare tools at toolgpa.com ›Everything in this guide is ToolGPA’s own summary of what Synthflow’s pages, its app-store listings and public reviews said on the dates shown. Grades are our judgement under the rules at toolgpa.com/grades. Every grade, review and ranking on ToolGPA is our own judgement. No company can pay for a grade or change one. Synthflow is a trademark of its owner, and this guide is not made, paid for or approved by Synthflow AI. Prices and plans change: check synthflow.ai before you buy.