SolarDialer vs Synthflow
Synthflow is a no-code platform for building voice AI agents, popular with agencies. SolarDialer is a ready-to-run dialer that reactivates old leads, with the agent, scripts and campaigns already set up.
SolarDialer suits
Sales teams that want their old leads called and transferred live, without designing an agent first.
Synthflow suits
Agencies and businesses that want to build several kinds of voice agents, such as receptionists and booking agents, without code, often for clients under their own brand.
| SolarDialer | Synthflow | |
|---|---|---|
| Setup time | Minutes: sign up, upload your leads, pick an industry. New accounts are reviewed before their first call. | You build the agent in their editor: its prompt, actions and phone numbers. |
| Scripts ready for 51 industries | Ready for 51 industries: opening line, answers to objections, qualifying questions and rules, all editable. | You write and test the script yourself; any templates are starting points, not ready-made scripts per industry. |
| Compliance gate built in | Yes: before every call, the lead's calling hours in each of its time zones, holidays, attempt limits and the do-not-call list are checked. | Building blocks only: calling hours by time zone, holidays, attempt limits and do-not-call checks for an outbound campaign are generally yours to build. Check their docs for what's included. |
| Live transfer to your closer | Yes: your closer's phone rings, they hear a short briefing, then the lead joins. | Possible: a transfer you set up and test yourself. |
| Pricing model | 22¢ a minute on our phone lines (14¢ agent + 8¢ line), or 14¢ with your own carrier. Calls nobody answers are free. | Plans that include minutes, with extra minutes billed; see their site. |
| Contracts | None. Add credit, pay for the minutes used, stop any time. | Subscriptions, with enterprise agreements. |
Compared October 2026; check each vendor's site for current details.
When Synthflow is the better choice
Synthflow is the better choice when you're an agency building voice agents for many clients, or you want inbound receptionists, booking agents and other kinds of agents in one no-code tool.
Other comparisons
See it on your own leads
Pick your industry, upload a list and press start. No monthly fee and no contract. Every account gets $2 of free calls each month.