Semaloop vs Revyl
Revyl is a mobile platform pairing natural language tests with run reports and a map of your app. Semaloop runs natural language tests on real iPhones and Android emulators against every build you ship.
What Revyl is
Revyl runs iOS and Android apps in cloud simulators and emulators and takes tests whose steps are written in natural language. Each run comes with a report: video, screenshots, step results, logs and network traffic. It also offers Atlas, a continuously updated map of the screens, states and transitions it has observed in your app, and a Python SDK for programmatic control. Of everything here it sits closest to us.
Where they differ
| Semaloop | Revyl | |
|---|---|---|
| Test authoring | Natural language specs | Steps written in natural language |
| Centre of gravity | Regression on every build | A development platform: testing, observability and a map of app behaviour |
| Programmatic control | MCP server and REST API | A Python SDK |
| Deciding pass or fail | A separate judging step against the spec | Pass or fail reports with validation steps, and proof-of-changes verdicts with confidence scores for PR changes |
| What the tests run on | Real iPhones on iOS; emulators on Android | iOS simulators and Android emulators; dedicated iOS runners are listed for Enterprise |
| Pricing | Published in full, with a calculator | Published, usage-based: Starter at $250 a month with included compute credits |
Choose Revyl if
- You want a behavioural map of the app as much as a pass or fail, and will act on run evidence yourself.
- A Python SDK fits how your team wants to drive things.
- Their device coverage lines up better with your matrix — worth checking directly, since both products move quickly.
Choose Semaloop if
- You want a verdict you can trust without reading the trace, with the trace there when you need it.
- Audio, permissions, push and in-app purchase flows are part of what you need covered.
- You want to model your bill per execution yourself before speaking to anyone.
Sources
What this page says about Revyl comes from its own pages below, last checked 26 October 2026. Tell us if anything is out of date.