ParticlesMobile/ParticlesVR is an app made in Unreal Engine, originally actually as a VR program. The initial premise was to experiment and test physics capabilities in virtual reality for viability in games, and has changed more into testing out performance of devices in VR or not. This program essentially stress tests the device it's running on by spawning additional particles via a slider controllable in the mobile version by a joystick in the top-left of the screen. Also included are basic camera controls to be able to view the scene from different angles. Press the back button to exit.
WARNING: This app is experimental, and is intended to stress test a device. Stress testing a device can cause freezes and crashes. I've observed the app crash on my high-end phone once the particle spawn rate got too high. I am curious about any additional results, such as what devices may be capable of higher spawn rates or what else may occur on a device under load.
I am planning on releasing the source code of this app/project in the future, as well as possibly updating it with more robust benchmarking tools, as well as some editing tools (such as what those three spheres in the map are doing)