# Phone Diagnostics Expert vs QR Studio

The clearest difference is in-app purchases: QR Studio at none against Phone Diagnostics Expert's 1. QR Studio also leads on update cadence (daily vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Phone Diagnostics Expert sells 1 one-off in-app purchase. QR Studio asks for nothing beyond the download.

Phone Diagnostics Expert ships an update every 2 weeks, QR Studio daily. Both last shipped on October 24, 2026.

## The numbers

| Metric | Phone Diagnostics Expert | QR Studio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (17 ratings)](https://appshunter.io/ios/app/phone-diagnostics-expert/id6752949053/reviews)** | — |
| Number of ratings | **17** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Daily** |
| Monetization | Free | — |
| Size | 45 MB | 3 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [君 潘](https://appshunter.io/developer/647696765) | [Volkan Emrah Sumer](https://appshunter.io/developer/1545643078) |

## What reviewers say

### Phone Diagnostics Expert

[App page](https://appshunter.io/ios/app/phone-diagnostics-expert/id6752949053)

This tool offers a comprehensive diagnostic for your device's hardware and functions. It provides both quick, automatic checks and detailed manual tests for individual components, generating complete reports for troubleshooting or verification.

**Highlights:** One-click automatic hardware detection, Manual verification of individual components, Generation of detailed test result reports, Tests for sensors, connectivity, and hardware, Camera, screen, and system function checks

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Unlock | $0.99 | one-time |


### QR Studio

[App page](https://appshunter.io/ios/app/qr-studio-ai-qr-code-maker/id6779206315)

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

**In-app purchases:** none


## Frequently asked questions

### Is Phone Diagnostics Expert free?

Phone Diagnostics Expert is free to download, with in-app purchases available.

### Is QR Studio free?

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

### Do Phone Diagnostics Expert or QR Studio have ads?

Neither Phone Diagnostics Expert nor QR Studio shows ads.

### Which is updated more often, Phone Diagnostics Expert or QR Studio?

Phone Diagnostics Expert ships an update every 2 weeks, and QR Studio daily. Most recently, Phone Diagnostics Expert was updated on October 24, 2026 and QR Studio on October 24, 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.*