Pixel Checker - Monitor Test
Dead Pixel & Screen Tester
$0.99 · Designed for iPad. Not verified for macOS.
Easily check your display for dead pixels and screen quality issues.
A free, full-screen monitor test tool — select only the tests you need.
【Tests Included】
• Dead Pixels — Spot black dots on a white screen
• Solid Colors — Detect off-color pixels in Red, Green, Blue & Black
• Uniformity — Check brightness consistency across the screen
• Color Gap — Verify inner/outer color contrast accuracy
• Gradient — Test smooth color gradation rendering
• Sharpness — Check text clarity and contrast inversion
【How to Use】
1. Select the tests you want
2. Tap 'Start Test' → full-screen mode activates automatically
3. Use left/right arrows to navigate between tests
4. Completed tests are marked with a checkmark badge
Korean & English supported / Dark & Light theme
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• Now optimized for iOS 27.2.
• Uses the full screen on devices whose screen size changes, such as iPhone Duo.
• A short logo screen now fades smoothly into the app.
• The status bar hides automatically 4 seconds after launch, so test screens fill the display.
• Stability improvements.
The developer, YEONJU LEE, 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
- YEONJU LEE
- Size
- 774.1 KB
- 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
- Age Rating
4+
- 4+
- Copyright
- © Yeonju Lee
