# Test & Check for iPhone vs iDiagnosis

The clearest difference is review sentiment: Test & Check for iPhone at 75% against iDiagnosis's 25%. Test & Check for iPhone also leads on rating (3.9 vs 3.4) and iOS requirement (9.0 vs 15.0). iDiagnosis's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, ratings volume, update cadence and device support there is nothing between them.

Both are free to download. Test & Check for iPhone sells 1 one-off in-app purchase. iDiagnosis asks for nothing beyond the download.

Test & Check for iPhone holds the better App Store score, 3.9 against 3.4. Both are backed by a comparable volume of ratings — 42 and 18 respectively. Written reviews point the same way: 75% of Test & Check for iPhone's written reviews are positive against 25% of iDiagnosis's.

Test & Check for iPhone ships an update every 3 months, iDiagnosis every 5 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Test & Check for iPhone | iDiagnosis |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (42 ratings)](https://appshunter.io/ios/app/test-and-check-for-iphone/id1022281157/reviews)** | [3.4 (18 ratings)](https://appshunter.io/ios/app/idiagnosis/id1534880599/reviews) |
| Number of ratings | **42** | 18 |
| Positive reviews | **74.5% of reviews** | 25.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 months** | Every 5 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 5 MB | 13 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Prasomsak Khunmuen](https://appshunter.io/developer/636412127) | [V Group Inc](https://appshunter.io/developer/916210832) |

## What reviewers say

### Test & Check for iPhone

[App page](https://appshunter.io/ios/app/test-and-check-for-iphone/id1022281157)

Verify the functionality of your iPhone or iPad with comprehensive hardware tests. Check screen, sensors, multimedia, and connectivity to ensure optimal performance. Also provides detailed device specifications and system status monitoring.

**Highlights:** Comprehensive hardware testing, Screen functionality checks, Sensor verification, Multimedia component tests, Connectivity status, Device information and system monitoring

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |

**What reviewers like**

- 👍 Simple and easy to use
- ✅ Ideal for pre-sale/purchase checks
- 📱 Helps test iPhone functionality
- 💡 Provides comprehensive test coverage
- ✨ Nice user interface

**What reviewers complain about**

- 🤔 Manual testing, not automated
- 🤷‍♂️ Some users find it pointless/a rip-off
- 💸 Waste of money for some
- ❌ Does not test battery
- 📉 Limited functionality and insight

**Reported bugs**

- App caused Wifi issues on iPhone 4s
- Pinch test didn't work on iPhone 6s
- Pinch and shake tests did not work for some users

**Requested features**

- Add automated diagnostic tests
- Include CPU and RAM testing
- Add battery test
- Add Touch ID test
- Add 3D Touch test


### iDiagnosis

[App page](https://appshunter.io/ios/app/idiagnosis/id1534880599)

Diagnose hardware components and sensors on your iPhone or iPad. Get detailed reports on tests, including device configuration and IMEI, to verify phone authenticity and functionality. Ideal for checking second-hand devices or ensuring your current phone works correctly.

**Highlights:** Diagnose mobile components and sensors, Detailed test reports, Display feature and configuration details, Check device IMEI, Test screen, sound, motion, connectivity, sensors, hardware, and camera

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Test & Check for iPhone free?

Test & Check for iPhone is free to download, with in-app purchases available.

### Is iDiagnosis free?

iDiagnosis is free to download, with no in-app purchases.

### Which has better reviews, Test & Check for iPhone or iDiagnosis?

Test & Check for iPhone is rated higher. Test & Check for iPhone averages 3.9 out of 5 from 42 ratings, while iDiagnosis averages 3.4 from 18 ratings.

### Do Test & Check for iPhone or iDiagnosis have ads?

Test & Check for iPhone shows ads; iDiagnosis does not.

### Which is updated more often, Test & Check for iPhone or iDiagnosis?

Test & Check for iPhone ships an update every 3 months, and iDiagnosis every 5 months. Most recently, Test & Check for iPhone was updated on November 1, 2026 and iDiagnosis on November 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*