Pixel Checker Downloads & RevenuePixel Checker - Monitor Test · App Store
Not in any tracked top chart right now.
Updated 9 Nov 2026 · rankings refresh through the day
DeveloperYEONJU LEE
CategoryUtilities
Price1,100 KRW
Released
Rating★ 5.0 (2)
Version1.4
Age rating4+
First seen by us
24 Oct 2026
24 Oct 2026Pixel Checker - Monitor Test update history & changes
Last change · 6 events since 6 Feb 2024Full timeline ↓📦Updated to version 1.4📦First update in 141 days🆕First spotted by AppInsider🆕Released on the App Store
Full timeline · 6 events
- ✏️Pixel Checker - Monitor Test: runs on older iOSiOS 17.2 → iOS 17.0
- 📦Pixel Checker - Monitor Test updated to version 1.4• 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.… more - 📦Pixel Checker - Monitor Test: first update in 141 days
- 🆕Pixel Checker - Monitor Test first spotted by AppInsiderSouth Korea (found via developer)
- 📦Pixel Checker - Monitor Test version 1.3- UI Improvement
- 🆕Pixel Checker - Monitor Test released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
5.0 ★
2 ratings
Measured
Pixel Checker - Monitor Test on the App Store
App details
App ID
6476964168
Publisher
YEONJU LEE
On the store since
Feb 2024
2 years on the store
Minimum OS
iOS 17.0+
iPhone XS and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
1
EN
Size
1 MB
Also listed in
Productivity
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
5.0 ★
2 ratings
Measured
Ratings
2
Measured
About Pixel Checker - Monitor Test
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
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
Latest updates
1.4
• 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.
1.3
- UI Improvement
Store changes
What Pixel Checker - Monitor Test changed on its store page: name, icon, screenshots, price, size, languages, requirements.
Runs on older iOS
iOS 17.2 → iOS 17.0
