Volume Shader

Native Metal Volume Shader BM on iPhone and iPad. GPU, CPU, and memory tests, plus a simple checkup. Free, with labeled ads. Results stay on your device.

Volume Shader is the viral Volume Shader BM GPU test, built natively for iPhone and iPad.

The Mandelbulb ray march runs in Metal on your iPhone or iPad.

WHAT YOU CAN DO • Run Volume Shader BM at Simple, Standard, Advanced, or Extreme • Use Standard + 30 seconds when you want a score you can compare • Drag to rotate, pinch to zoom, and pan. Explore does not save a score. • Time CPU and memory on the same device • See GPU, memory, display, storage, and thermal state • Walk a display, touch, haptics, speaker, and battery checkup

HEAT AND BATTERY This is a real GPU workload. The device can get warm and the battery will drain faster while a test is running. Extreme asks for confirmation. The app stops itself if iOS reports a critical thermal state.

ADS Volume Shader is free and shows labeled native ads on Test, Device, and Checkup. Ads sit below the main content on those screens. They do not overlay the GPU test or fullscreen checkup steps. You can report an ad from the AdChoices icon on the ad.

PRIVACY No account. Tests, history, and checkup marks stay on this device. Nothing is uploaded. If you tap Share, iOS’s share sheet sends only what you chose to the app you pick. Ads use the ads SDK described in the privacy policy.

Support: https://volumeshaderbm.com Privacy: https://volumeshaderbm.com/privacy-policy/