Appium vs Espresso

Free and open source

Free and open source

Free. The real cost is the device lab or device-cloud subscription you run it against.

Free and open source. You pay in engineering time and CI minutes.

Everything, self-hosted

Everything, self-hosted

Category standard

OpenJS Foundation · since 2012

Category standard

Google · since 2013

• One API and one test suite for both platforms, in the language you already use.
• Every device cloud supports it, so you stay portable.
• No modification to the app under test — you test the same binary you ship.

• Automatic UI-thread synchronisation makes tests both fast and reliable.
• First-party Google support, updated alongside Android itself.
• Runs on emulators in CI cheaply, including Firebase Test Lab.

• Notoriously slow and flaky compared to the native frameworks it wraps.
• Setup is a genuine project: drivers, Xcode, provisioning, Android SDK, versions.
• Debugging failures across the Appium/driver/device layers takes real expertise.

• Android only.
• Testing across app boundaries requires UiAutomator alongside it.
• Compose testing uses a related but separate API to learn.

Teams that must cover iOS and Android from a single suite and can absorb the setup cost.

Android teams that want the fastest, most reliable native UI tests.