PixelCheck: Dead Pixel Test
Screen & OLED Burn-in Tester
$0.99 · Designed for iPad. Not verified for macOS.
New: guided Screen Check with a shareable report, Pixel Fixer for stuck pixels, backlight bleed test, and true multi-touch testing.
Buying a used iPhone? Just had your screen repaired? PixelCheck gives you a full guided screen check and six focused tests to verify your display is perfect — with a report you can share.
GUIDED SCREEN CHECK
Run every test in sequence with clear instructions, give each a pass or fail, and finish with a summary. Share the result as a report — proof of your screen's condition when buying or selling.
DEAD PIXEL TEST
Cycle through 11 full-screen colors — white, black, red, green, blue, yellow, cyan, magenta, and three gray levels. Dead pixels and stuck pixels stand out immediately against solid colors.
PIXEL FIXER
Found a stuck pixel? Rapid color flashing can help revive it. Position the screen and let it run.
BACKLIGHT BLEED TEST
A pure black screen reveals light leaking around the edges of LCD displays.
TOUCH SCREEN TEST
Draw across a grid overlay to verify every zone of your touch screen responds — with true multi-finger support. Track your coverage in real time.
OLED BURN-IN TEST
A slow-moving gray block and uniform gray screen reveal ghost images, uneven brightness, and burn-in damage on OLED displays. Adjust the gray level to catch subtle issues.
SCREEN INFO
View your device model, screen resolution, pixel density, display type, refresh rate, and current brightness — all in one place.
WHY PIXELCHECK?
- No ads, no tracking, no internet required
- Works completely offline
- Tiny app size, instant launch
- Supports iPhone and iPad
- Screen stays awake and at full brightness during tests
PERFECT FOR
- Buying or selling a used iPhone or iPad
- Checking a screen after repair
- Verifying OLED burn-in on older devices
- Testing touch response across the full screen
Simple, fast, private. Open the app, run the check, share the proof.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• Guided Screen Check: run every test in sequence and get a clear pass/fail summary
• Share Report: send proof of your screen's condition — perfect when buying or selling a used device
• New Pixel Fixer: rapid color flashing helps revive stuck pixels
• New Backlight Bleed test for LCD screens
• Touch test now registers multiple fingers at once
• Dead pixel test now has 11 colors, including three gray levels
• The screen stays awake and at full brightness during tests
• Haptic feedback throughout the app
The developer, Sindre Sørensen, 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.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Sindre Sørensen
- Size
- 1.9 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 8 more
- English, French, German, Japanese, Korean, Norwegian Bokmål, Portuguese, Simplified Chinese, Spanish
- Age Rating
4+
- 4+
- Copyright
- © 2026 Sindre Sørensen
