ScreenTest - Dead Pixel Check

Screen Diagnostics

Free · Designed for iPad. Not verified for macOS.

Screen Test is a lightweight, privacy-focused app that helps you check your iPhone and iPad display quality with 10 professional screen tests. 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.

Ratings & Reviews

  • 4.0
    out of 5
    2 Ratings

The developer, Son Nguyen, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    • Son Nguyen
    Size
    • 855 KB
    Category
    • Utilities
    Compatibility
    Requires iOS 12.0 or later.
    • iPhone
      Requires iOS 12.0 or later.
    • iPad
      Requires iPadOS 12.0 or later.
    • iPod touch
      Requires iOS 12.0 or later.
    • Mac
      Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    English and 19 more
    • English, Arabic, Dutch, French, German, Hindi, Indonesian, Italian, Japanese, Korean, Malay, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Thai, Traditional Chinese, Turkish, Vietnamese
    Age Rating
    4+
    Copyright
    • © 2026 uax.io
  • Developer Website
  • Privacy Policy

    • More by Son Nguyen