Google Firebase Test Lab vs. Gatling

Test your app on devices hosted in a Google data center. Firebase Test Lab for Android provides cloud-based infrastructure for testing Android apps. With one operation, you can initiate testing of your app across a wide variety of devices and device configurations. Test results—including logs, videos, and screenshots—are made available in your project in the Firebase console. Even if you haven't written any test code for your app, Test Lab can exercise your app automatically, looking for crashes.

Gatling is a load-testing solution that helps organizations identify bottlenecks and guarantee website stability under traffic load through test automation. Gatling Enterprise includes advanced features for reporting (live reporting, TCP connections metrics, bandwidth usage, injectors' monitoring) and automation (public APIs, new Continuous Integration plugins, clustering mode). With 30,000,000 downloads for more than 300 000 companies worldwide, Gatling’s solution is used in diverse industries such as software, e-commerce, streaming media, banking, insurance, gaming, and finance.