Semaloop vs TesterArmy
TesterArmy is a YC-backed agent that tests web and mobile apps on cloud simulators. Semaloop runs plain-English tests on real iPhones and Android emulators against every build you ship.
What TesterArmy is
TesterArmy turns plain-English instructions into test plans and runs them against your app on cloud simulators. You build an iOS Simulator binary, upload the .app bundle, and its agent drives it. It also generates a test plan from a pull request’s title, description and changed files, so a PR that touches nothing user-visible can skip the run entirely.
Where they differ
| Semaloop | TesterArmy | |
|---|---|---|
| What the tests run on | Real iPhones on iOS; emulators on Android | Cloud simulators on both |
| Getting a build in | Ingested from TestFlight, or an APK pushed from CI | You produce and upload a simulator build |
| What triggers a run | Every new build, every active test | Pull requests, scoped to what changed |
| Real-device-only failures | In scope on iOS — push, IAP, camera, warm hardware | Outside what a simulator reproduces |
Choose TesterArmy if
- You want the gate at the pull request rather than the build, and scoping a run to the changed files is worth more to you than device realism.
- Your app’s risk genuinely lives in layout and logic, not in the hardware-dependent flows.
- You want one tool covering web and mobile together.
Choose Semaloop if
- Your iOS risk is in the flows a simulator cannot produce: one-time passcodes over SMS, push, in-app purchases, the camera, a Safari redirect handing back to the app. We run those on real iPhones.
- You would rather test the build you actually ship than a separate simulator binary.
- You want coverage that does not depend on a diff looking risky enough to warrant it.