# iDiagnostic — Hardware Diagnostic Tool > On-device hardware diagnostic tool for iPhone and iPad. (iPhone/iPad app by Giang Do.) - Source: https://appshunter.io/ios/app/idiagnostic/id6764337271 (this page in markdown: same URL + `.md`) - Developer: [Giang Do](https://appshunter.io/developer/1434395412) - Category: Utilities, Developer Tools - Price: Free - Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 17.0 · 9 MB - Languages: English - Released: 2026-04-29 - Data updated: 2026-06-25 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/idiagnostic/id6764337271/reviews.md ## What is iDiagnostic? 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. ## Key features - Display color and dead pixel test - Configurable touch screen grid test - Camera detection and individual testing - Speaker and earpiece audio output test - Microphone recording and playback test - On-device processing, no data collection ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/idiagnostic/id6764337271/reviews.md ### 5/5 — App xài tiện dụng *2026-04-30* App hay sử dụng tiện dụng ## Frequently asked questions about iDiagnostic ### What hardware components does iDiagnostic test? iDiagnostic tests the display for dead pixels and color shifts, the touch screen for responsiveness across the entire surface, all physical cameras, the loud speaker and internal earpiece for audio output, and the microphone for recording and playback. ### Is iDiagnostic free to use? Yes, iDiagnostic is completely free to download and use. It does not have any in-app purchases or advertisements, offering a straightforward diagnostic experience. ### Does iDiagnostic collect my data? No, iDiagnostic prioritizes user privacy. It runs entirely on your device, making zero network requests. Your camera, microphone, and test results are never collected, transmitted, stored, or shared. ### What devices are compatible with iDiagnostic? iDiagnostic is designed for Apple devices and is compatible with iPhone, iPad, and iPod touch. It automatically follows your device's system language setting, available in English and Vietnamese. ### How often is iDiagnostic updated? The latest version of iDiagnostic is 1.0.9, last updated on June 4, 2026. Updates typically focus on improving functionality and ensuring compatibility with the latest operating system versions. ### Can iDiagnostic help me if I'm buying a used iPhone? Absolutely. iDiagnostic is perfect for anyone buying a used iPhone or iPad, allowing you to verify that all key hardware components are functioning correctly before making a purchase. ### Does iDiagnostic have ads? No, iDiagnostic is ad-free. The description explicitly states 'No ads. No tracking. No accounts. Just a clean diagnostic tool that does one thing well.' ### What is the age rating for iDiagnostic? iDiagnostic has an age rating of 4+. This indicates it is suitable for users of all ages and does not contain content that would be inappropriate for children. ## Version history (last 5 releases) ### 1.0.9 — 2026-06-04 Bug fixes and stability improvements. ### 1.0.7 — 2026-05-26 Bug fixes and stability improvements. ### 1.0.6 — 2026-05-17 Bug fixes and performance improvements. ### 1.0.5 — 2026-05-13 Initial release. - 6 hardware tests: LCD, Touch, Camera, Loud Speaker, Internal Speaker, Microphone - Detects all physical cameras (wide, ultra-wide, telephoto, TrueDepth, LiDAR) - Configurable touch grid (4x3 to 20x12) - On-device only — no data collection, no network calls - English and Vietnamese ### 1.0.1 — 2026-05-06 - EN: Improvements to diagnostic workflow and reliability. - VI: Cải thiện luồng chẩn đoán và độ ổn định. --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-25.*