# Regal vs Synthflow: who uses which

On usedby, 40 companies use Regal and 14 use Synthflow. No company is listed with both yet. Counts include every proof level, job-post signals included. Companies named on both have a confirmed or observed line on each side. Latest check 2026-10-08: 51 of 54 public lines checked.

## Side by side

|  | [Regal](https://www.usedby.ai/tools/regal.md) | [Synthflow](https://www.usedby.ai/tools/synthflow.md) |
|---|---|---|
| Public customers | 40 | 14 |
| Confirmed | 26 | 7 |
| Observed | 14 | 7 |
| Signals (job posts) | 0 | 0 |
| Top industries of customers | EdTech & E-learning (4), Fintech & Payments (3), Insurance & InsurTech (2) | Investment & VC (2), Marketing Tech (1), Sales Tech & CRM (1) |
| Category | AI Phone Agents | AI Phone Agents |
| Data processing terms | A data processing agreement is available. ([regal.ai](https://www.regal.ai/security), checked 2026-10-08) | A data processing agreement is available. ([security.synthflow.ai](https://security.synthflow.ai/), checked 2026-10-07) |

## Published results

Reviewed stories only; usedby did not measure the figures.

- Regal: [Healthbird](https://www.usedby.ai/case-studies/healthbird-regal.md): **250%**: “HealthBird instantly saw a 250% lift in agent productivity from using their Sales Dialer.” (captured by usedby 2026-10-08)
- Regal: [Career Karma](https://www.usedby.ai/case-studies/career-karma-regal.md): **2x**: “2x Lift in Conversions” (captured by usedby 2026-10-08)
- Synthflow: [Smartcat](https://www.usedby.ai/case-studies/smartcat-synthflow.md): **70%**: “reducing booking costs by 70%” (captured by usedby 2026-10-05)
- Synthflow: [Peak Demand](https://www.usedby.ai/case-studies/peak-demand-synthflow.md): **+80%**: “+80% Faster Data Submission” (captured by usedby 2026-10-05)

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Source: https://www.usedby.ai/compare/regal-vs-synthflow · How we check: https://www.usedby.ai/methodology