TouchScreenCheck vs ScreenTest

The simple app lets you test TouchScreen responsiveness, check its consistency and reliability in registering touches. Background color changes upon every touch during the test. Total number of touches and the coordinates of the last touch are shown on screen. This provides an easy way to verify and demonstrate TouchScreen issues to a Service Center. Equally valuable could be verification and visible confirmation that TouchScreen itself works fine, so that whatever unresponsiveness one might experience in some app, in an element at any place on screen, it could be confidently addressed to that app’s software technical support.

Screen Test is a lightweight, privacy-focused app that helps you check your iPhone and iPad display quality with 10 professional screen tests. TESTS INCLUDED: - Dead Pixel Test - Detect dead or stuck pixels with solid color backgrounds - Touch Screen Test - Find dead zones that don't register touch input - Multi Touch Test - Check how many simultaneous touch points your screen supports - Color Accuracy Test - Verify color reproduction with RGB gradients, grayscale, and SMPTE color bars - Screen Uniformity Test - Detect backlight bleeding and uneven brightness - Contrast Test - Check contrast ratio with checkerboard and stripe patterns - Grid / Line Test - Detect screen distortion with grid, crosshair, and circle patterns - Response Time Test - Check for ghosting and motion blur with moving objects - Brightness Test - Test screen brightness levels from 0% to 100% - Burn-in Test - Detect OLED burn-in and image retention with special patterns DEVICE INFORMATION: - View detailed specs: device model, chip, iOS version, RAM, storage - Screen info: size, resolution, refresh rate, aspect ratio, density WHY SCREEN TEST? - Ultra lightweight - under 500KB - No ads, no tracking, no analytics - No internet connection required - Works completely offline - Supports 20 languages - Dark and Light themes - Supports all iPhones including iPhone 17 series Perfect for checking a new or used phone before purchase, verifying screen repairs, or testing display quality.