PixelCheck vs Color Screen Light

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.

Turn your screen into a pure color light. The simplest single-color screen app for use as a penlight, nightlight, photo backlight, display test, and more. [Key Features] ■ Full-Screen Solid Color Fill the entire screen with any color you choose. ■ Precise Color Picking Pick colors using a color wheel, HSV/RGB sliders, or HEX input. ■ Favorites Save colors you love and recall them with a single tap. ■ Scene Animations Built-in presets: Rainbow, Candle, Thunder, Aurora. Or compose your own gradients and blinks. ■ Lock Mode (Unique) Lock the screen so taps won't change anything. Long-press for 3 seconds to unlock. Perfect for nightlight or photo shoots where you don't want accidental changes. ■ Display Test Cycle through 8 colors to check screen color reproduction. Useful for repair, calibration, and quality checks. ■ Auto-Max Brightness Automatically pushes the screen to maximum brightness on launch. Sleep prevention is built-in. ■ Landscape Support Works seamlessly in portrait and landscape. [Perfect for] - Penlight at concerts and live events - Gentle nightlight for kids and babies - Backlight or color source for photography - Color reproduction checks for displays - Using your phone as a portable light