Cuttlefish vs MEmu Play

Cuttlefish is a configurable virtual Android-powered device that runs locally or remotely. It is intended for platform and app developers who need to develop and validate code changes without relying on physical hardware. The device aims to reproduce Android framework behavior closely, including custom framework implementations. Users can set its form factor, RAM, and CPU count, then run multiple devices at once with concurrent test execution. Documented uses include CTS, framework compliance, continuous integration, and custom test suites. Cuttlefish runs locally on Linux x86 and ARM64 machines and requires host virtualization with KVM. It registers with adb as a normal device and can be viewed and controlled in a browser through a local WebRTC webview. It natively supports Google Cloud; support for other cloud platforms is described as planned. Differences from physical devices mainly involve the hardware abstraction layer and software that interacts with custom hardware. Cuttlefish is free and open source, and its documented setup requires Debian host packages plus device images and a host package from Android Continuous Integration.

MEmu Play is Windows software that simulates Android so users can install, use, and uninstall Android apps on a PC. It supports Google Play and lets users control apps and games with a keyboard and mouse, with external controllers supported in some cases. Features include keyboard mapping, macros, game automation, video recording, GPS simulation, and command-line scripts. Multi-instance mode can run multiple accounts for one game or different games at the same time. The maker describes enhanced OpenGL and DirectX 3D rendering for larger screens. MEmu Play is free and may contain advertisements. It requires Windows 7 or later, a 2-core Intel or AMD processor, enabled hardware virtualization, at least 2 GB RAM (4 GB for x64), and 5 GB of free disk space. The maker says it does not currently offer Mac or Linux versions. Its online installer includes ad plugins users can reject; the maker describes the offline installer as a cleaner version.