Mic Test vs iDiagnostic
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mic Test
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Is your microphone working? Find out in seconds. Mic Test shows your mic level live in dBFS and warns you when no sound reaches it. Buying a used or new iPhone or iPad? Calls cutting out, voice messages sounding muffled, or people can't hear you on video calls? Run a quick mic test before you trust the device or your headset. Free features: • Live level readout in dBFS • Silence warning when no sound reaches the mic • "Your microphone works" result after a quick test • Tests the built-in microphone Premium (one-time lifetime purchase, no subscription): • Test every mic: bottom, front, back, headset, Bluetooth and USB • Live waveform and peak level • dB noise graph: the last 60 seconds of your mic level • Test history: your last 20 tests, stored on your device only • Share a text test report with your device details and levels • No ads Who it is for: • Checking a used or new iPhone or iPad before you buy it • Troubleshooting calls, voice messages and video calls • Testing a wired headset or Bluetooth earbuds before you rely on them • Repair shops checking mics before and after a repair How to run a test: 1. Open the app and start a test. 2. Speak normally, then tap or speak close to the mic opening. 3. Watch the live level and read the result. Languages: English, Turkish, German, Spanish, Portuguese, Japanese, French, Arabic, Ukrainian and Russian. To change the language, open iOS Settings, scroll to Mic Test and choose Language. Privacy: Audio never leaves your device. Mic Test does not record, save or upload your voice. It only measures the sound level while the test is running. Good to know: Mic Test measures the sound your iPhone or iPad receives. It does not test speakers or the camera. Results depend on your device and its mics. The free version shows ads; Premium removes them. You can restore a previous purchase from the app's Settings. Questions or feedback? Visit https://yunusgunduz.com/contact.php?lang=en
iDiagnostic
This tool helps you quickly check the functionality of your iPhone or iPad's hardware components. It tests the display, touch screen, cameras, speakers, and microphone, ensuring everything is working as expected. Designed for privacy, all tests are performed on-device with no data collection.
- 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
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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.
Screenshots
Verdict
The clearest difference is in-app purchases: iDiagnostic at none against Mic Test's 1. iDiagnostic also leads on ads (none vs shown) and update cadence (weekly vs every 3 weeks). On price, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Mic Test sells 1 one-off in-app purchase. iDiagnostic asks for nothing beyond the download.
Mic Test ships an update every 3 weeks, iDiagnostic weekly. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.
| Parameter | Mic Test | iDiagnostic |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 weeks | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 7 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Yunus Gunduz | Giang Do |
In-app purchases
Mic Test
- Premium Lifetime$2.99
iDiagnostic
No in-app purchases









