Optimized for testing
Every decision is tuned specifically for QA - fewer false alarms, better reports.
Backed by
CombinatorExpo app testing
CombinatorExpo app testing
on every EAS build
TesterArmy plugs into Expo EAS with a first-party integration and runs automated end-to-end tests on every build - no ejecting, no config plugins, no test code.
[01] Skills & features
Bring your testing to another level
EAS builds sync in. Test reports come out.
iOSAndroid
EAS builds sync in. Test reports come out.
iOSAndroid
TRUSTED BY
[02] Expo stack
Works with the Expo workflow you already ship
[03] The Expo gap
Fast releases,
untested releases
EAS makes shipping an Expo app effortless - builds, updates, and submissions on tap. The testing step never got the same upgrade. Until now.
E2E frameworks want you to eject
Detox needs config plugins, custom dev clients, and native build tweaks. The whole point of Expo was not doing that. So most Expo apps ship with no E2E coverage at all.
EAS Update ships JS in minutes, untested
Over-the-air updates skip App Review and your test pipeline in one move. The bundle your users run tonight has never been through a full journey.
Simulator builds pile up unverified
EAS produces a build for every profile and branch. Someone taps through the happy path on one of them, sometimes. The rest go straight to TestFlight.
SDK upgrades move everything at once
A new Expo SDK bumps React Native, native modules, and tooling together. Unit tests stay green while navigation, permissions, or deep links quietly break.
[04] Per-regression evidence
Every regression, fully recorded
When a journey breaks, you don't get a crash log and 'works on my device'. You get the recording from the simulator, screenshots at every key moment and the step trace with timing.
- 01Full session recording of every run on a real simulator
- 02Screenshots, named by the journey description
- 03Pass/fail breakdown per step with timing data
- 04Repro steps and the exact build that broke the flow
- 05Side-by-side diff against the last green run
[05] How it works
Four steps to automated Expo app testing
Connect EAS, describe critical flows in plain language, and let TesterArmy catch regressions on every build and OTA update - before your users do.
Connect GitHub
Upload app binary
Connect Expo EAS
First-party integration: link your Expo account and EAS builds sync into TesterArmy automatically. No ejecting, no config plugins, no custom dev client.
Expo EASFirst-partyAuto-sync
staging.yourapp
user@test.com
Submit
Write tests in plain English
Describe the journey in natural language. "Sign up with email, complete onboarding, start the free trial." No Detox, no testIDs, no test code in your repo.
Natural languageNo test codeNo DSL
GitHub AppAuto on deploy
WebhookAny CI pipeline
Run on every EAS build
Every EAS build - or every PR via the GitHub Action - triggers a full journey run on cloud iOS simulators and Android emulators. Results in minutes.
EAS BuildPR checkParallel
PassSearch results
Query returns the correct filtered items and pagination controls work as expected
Get a clear report
Recording, screenshots, step trace, and a clean bug report - before the build reaches TestFlight or the Play Console.
RecordingScreenshotsBug report
[06] Resources
TesterArmy in action
Explore real bug finds, QA tips, and client case studies from our work in practice.
August 26, 2026Introducing unbox-ai: See Where Your Agent's Tokens Actually Go
We built unbox-ai to read our own QA agent's traces. One command opens a token treemap, a latency waterfall, and a scrubbable timeline of the run. The same binary is a read-only trace explorer your coding agent can use. Now it's open source.
August 20, 2026Introducing the Issues Tab: One Row Per Bug, No Matter How Many Runs Found It
Agent-found bugs now land in one deduplicated list instead of scattered run reports. Every issue carries expected vs actual, repro steps, and a replay of the exact moment it broke - and leaves the list as a Linear ticket, a prompt for your coding agent, or resolved.
August 18, 2026We Benchmarked 10 Vision Models on Clicking What They See
All ten models answered every visual understanding question correctly. Grounding the click is where the field splits, and where GPT-5.6 Luna won on accuracy, precision, and cost.
[07] FAQ
Frequently Asked Questions
Connect your Expo account to TesterArmy and new EAS builds sync automatically. Each build triggers the journey tests you defined in plain English, on cloud iOS simulators and Android emulators, and returns a report with recordings and screenshots. No CI scripting required - though a GitHub Action is available if you want PR checks.
No. TesterArmy tests the compiled binary EAS produces - there is nothing to install in your app, no config plugin, no custom development client, and no native code changes. Managed workflow stays managed.
Yes. Run your journeys against a build pointed at the update branch before you promote it. OTA updates skip App Review, which makes them the release channel that most needs a test gate.
Most teams run journeys on a simulator build from their preview profile on every PR, and on the release candidate before submission. Any profile that produces an iOS simulator or Android emulator build works.
Detox can be made to work with Expo through config plugins and a custom dev client, but it adds the native build complexity Expo exists to remove. TesterArmy needs none of that - describe the flow in plain English and it runs against the EAS build as-is.
Automated Expo app testing runs your compiled Expo app end to end - onboarding, auth, purchases, navigation - without a human tapping through it. TesterArmy's AI agent executes plain-English journeys on every EAS build and reports regressions with full recordings, so SDK upgrades and OTA updates stop being leaps of faith.
Every EAS build tested before anyone installs it
Expo removed the native build pain. TesterArmy removes the testing pain. First-party EAS integration, plain-English journeys, and evidence on every build - managed workflow included. Setup lives in the Expo EAS docs. Bare workflow? See React Native app testing or the broader mobile app testing overview.
[08] Contact us