Detox vs NI TestStand

Detox is an open-source framework for end-to-end testing of React Native mobile apps. It runs tests on real devices or simulators and simulates user interactions, with JavaScript tests for iOS and Android. Its gray-box method accesses app internals, while monitoring asynchronous app activity to reduce flaky tests. An async-await API supports breakpoints in asynchronous tests. Teams can use Detox APIs with any test runner or independently; Jest integration is included. The project describes it as suitable for CI and documents CI workflows. Detox is free under the MIT License, supports self-hosted runners and visual testing, and is listed for Android, iOS, Linux, macOS and Windows. React Native v0.77.x through v0.84.x is fully compatible with the New Architecture; later versions may work but are not thoroughly tested. Expo integration is community-driven and not maintained by the Detox team. Non-React Native Android apps are not supported. iOS simulator setup requires applesimutils, which the setup guide says is for macOS only.

NI TestStand has no write-up on Specifiction yet; its figures are above.