A
It waa good!
MMohamadhpd4
Wrong device detected
It thinks my iPhone 17 pro is an iPhone 16e
T6Triple Tung Sahur 67
Very cromulent application
This application does what it describes and has a nice UI.
SSiliconGraphicsOnyx

Explore complex 3D fractal visualizations rendered natively on your iPhone or iPad. Test your device's GPU performance and check system states like thermal and battery.
1.2
October 19, 2026
Optional short ad unlocks unlimited Tests and Checkup for 2 hours after your free session, or wait for the next free window. GPU sessions and checkup steps stay interruption-free.
MoreYes, Volume Shader contains advertisements. The app is free to download and use, with ads supporting its development.
Volume Shader is designed for iPhone and iPad devices, leveraging their native Metal GPU capabilities.
It runs a native Mandelbulb ray march using Metal, allowing users to select different test complexities from Simple to Extreme.
Volume Shader is a real GPU workload and can cause the device to warm up and drain the battery faster. The app will stop itself if iOS reports a critical thermal state.
Yes, Volume Shader prioritizes privacy. No account is required, and tests, history, and checkup marks remain on your device. Nothing is uploaded.
Volume Shader has an age rating of 4+, making it suitable for a wide range of users.
The app was last updated on August 26, 2026, with version 1.0. Further updates will be released to improve functionality and add features.
Volume Shader offers Simple, Standard, Advanced, and Extreme modes for its BM GPU test. The Standard mode with 30 seconds is recommended for comparable scores.