# iDiagnostic vs SoundStems

iDiagnostic and SoundStems are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

iDiagnostic ships an update weekly, SoundStems fortnightly. Both last shipped on October 8, 2026.

## The numbers

| Metric | iDiagnostic | SoundStems |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/idiagnostic/id6764337271/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | Free | — |
| Size | 9 MB | 105 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Giang Do](https://appshunter.io/developer/1434395412) | [Lee Wyatt LLC](https://appshunter.io/developer/1835145216) |

## What reviewers say

### iDiagnostic

[App page](https://appshunter.io/ios/app/idiagnostic/id6764337271)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases:** none


### SoundStems

[App page](https://appshunter.io/ios/app/soundstems-no-ads-stem-maker/id6797044473)

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

**In-app purchases:** none


## Frequently asked questions

### Is iDiagnostic free?

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

### Is SoundStems free?

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

### Do iDiagnostic or SoundStems have ads?

Neither iDiagnostic nor SoundStems shows ads.

### Which is updated more often, iDiagnostic or SoundStems?

iDiagnostic ships an update weekly, and SoundStems fortnightly. Most recently, iDiagnostic was updated on October 8, 2026 and SoundStems on October 8, 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.*