Your development team has created a mobile game app. You want to test the new mobile app on Android and iOS devices with a variety of configurations. You need to ensure that testing is efficient and cost-effective. What should you do?

Firebase Test Lab is designed specifically for testing mobile applications on a wide range of virtual and physical devices, including various Android and iOS configurations. This service automates testing, provides detailed results, and is highly efficient and cost-effective compared to managing your own device farm. Creating Android and iOS VMs or GKE containers would be overly complex and inefficient for mobile app testing, as these environments are not optimized for simulating device-specific behaviors and hardware. Firebase Hosting is for hosting web content, not for testing mobile applications on devices.