Gltools Apk !free! - No Root

Without root, you can still change system resolution via ADB:

As noted by users, be careful not to backup the application directly with system tools like Titanium Backup, as this can cause settings to conflict. Pros and Cons of No Root GLTools Description Pros no root gltools apk

Recompiles graphic shaders on the fly to improve frame rates. Without root, you can still change system resolution