iDiagnostic vs ServiceTests

iDiagnostic is a fast, easy-to-use hardware diagnostic tool for iPhone and iPad. In just a few taps, verify that every key hardware component on your device is working correctly: DISPLAY - RGB color test cycles through Red, Green, and Blue full-screen patterns to spot dead pixels and color shifts. TOUCH SCREEN - Configurable grid (4x3 to 20x12) covers the entire screen so you can confirm every region responds correctly. - Real-time progress counter — tap to fill cells, get instant pass/fail when complete. CAMERAS - Detects every physical camera on your device — wide, ultra-wide, telephoto, TrueDepth, LiDAR. - Test each one individually with live preview and capture. LOUD SPEAKER - Plays a recognizable melody (Twinkle Twinkle Little Star) through the bottom speaker so you can verify audio output and quality. INTERNAL SPEAKER (EARPIECE) - Same melody routed through the top earpiece — hold the phone to your ear to confirm. MICROPHONE - Record your voice with a live audio level meter, then play it back to verify recording and playback both work. PRIVACY FIRST iDiagnostic runs entirely on your device. No data is ever collected, transmitted, stored, or shared. The app makes zero network requests. Your camera, microphone, and test results stay 100% on-device. LANGUAGES Available in English and Vietnamese — automatically follows your device's system language setting. Perfect for: - Anyone buying a used iPhone — verify hardware before paying - Phone repair shops checking refurbished devices - Developers testing app permissions and AVFoundation behavior - Tech enthusiasts curious about which cameras their phone has No ads. No tracking. No accounts. Just a clean diagnostic tool that does one thing well.

ServiceTests is a complete hardware diagnostic tool that helps you quickly and accurately check the condition of every component on an iOS device. Perfect for repair shops, resellers, quality control (QC) teams, and anyone inspecting a device before buying or selling. Run a full diagnostic in minutes and get a clear PASS/FAIL result for each test — no guesswork, no ads. TESTS INCLUDED: • Display (LCD) — detect dead pixels, lines, and color issues • Touchscreen — check responsiveness and dead zones • Brightness / dimming • Camera — front and rear • Flash / torch • Loudspeaker • Earpiece • Microphone — record and play back • Vibration • NFC — tag reading • Bluetooth — scan and connect • Motion sensors — accelerometer and gyroscope • Location / GPS — signal and positioning • Wireless charging DEVICE INFO: • View detailed hardware specifications and battery status WHY SERVICETESTS: • Clean, fast, and intuitive interface • Clear pass/fail result for every test • Full diagnostic in just a few minutes • No ads — built to do one job well PRIVACY: Each test requests only the permission it needs (camera, microphone, Bluetooth, motion, location, NFC) solely to perform the hardware check. Your data stays on your device.