# Device Tester Pro:System Check — Memory Checker & Hardware Test

> System utility for monitoring RAM, disk, CPU, network, and battery. (iPhone/iPad app by Phan Nhut.)

- Source: https://appshunter.io/ios/app/device-tester-prosystem-check/id849114011 (this page in markdown: same URL + `.md`)
- Developer: [Phan Nhut](https://appshunter.io/developer/849063753)
- Category: Utilities, Productivity
- Price: $1.99
- Rating: 4.10/5 from 460 App Store ratings · 201 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.0 · 7 MB
- Languages: American English
- Released: 2014-05-15
- Data updated: 2026-09-30
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/device-tester-prosystem-check/id849114011/reviews.md

## What is Device Tester Pro?

Device Tester Pro: A simple tool for hardware testing with lightweight diagnostic checks for key components.

Key Features:
• Hardware Test:
→ Test Camera, Bluetooth, Audio, Microphone, Keyboard Input, Sensors, and other hardware components.

• System Info Tools:
→ View quick device details including RAM, CPU, storage, network, and battery status.

• Utilities:
→ QR Code Generator: Create QR codes instantly from text or data.
→ Random Selection Tool: Make quick random choices or selections.
→ Clipboard Cleaner: Clear clipboard content with one tap.
→ Torch: Quickly turn on/off the flashlight and adjust brightness levels.

## Key features

- Check RAM usage
- Monitor disk usage
- Track CPU usage
- View network activity
- Analyze battery status
- System information overview

## What do users think of Device Tester Pro?

Overall sentiment: neutral

**Pros**

- 🚀 Cleans memory and frees up space
- 👍 Works well on older devices
- ⭐ Excellent app, highly recommended

**Cons**

- 🐛 Crashes frequently
- 🐛 Doesn't work with latest iOS versions
- 💰 Paid version required for full functionality

**Commonly reported bugs**

- Scan function doesn't complete
- Processes list always shows zero
- Crashes on iPhone 15 Pro Max

**Most requested features**

- Automatic memory cleaning
- Detailed process information
- Compatibility with newer iOS versions

## Recent user reviews (10 of 201)

All indexed reviews: https://appshunter.io/ios/app/device-tester-prosystem-check/id849114011/reviews.md

### 5/5 — 免费的更新了，付费的还未更新？The free version has been updated, but the paid version has not been updated yet?

*2026-09-21*

The free version has been updated, but the paid version has not been updated yet?

**Developer response:** Hi, the Pro version has just been updated to the latest version as well. It will be updated automatically through the App Store, or you can update it manually from the App Store if needed.

### 1/5 — N’ARRÊTE PAS DE PLANTER Applications close automatically, it's annoying

*2026-04-14*

Depuis la dernière mise à jour iOS 26.4.1 l’application, n’arrête pas de planter en se fermant automatiquement quoi que l’on fasse.
Pourriez-Vous mettre à jour votre application s’il vous plaît.
Bien cordialement.
Rivkah.

Since the last iOS 26.4.1 update, the application does not stop crashing by closing automatically no matter what you do.
Could you update your application please.
Sincerely.
Rivkah

### 1/5 — Needs an update for new iPhone models, 17 Pro Max.

*2026-03-14, version 3.3.4*

It's been crashing all the time.

### 1/5 — IPAD-Pro 2025 kein RAM SCAN

*2026-02-27*

Nutze den Vorgänger schon seit vielen Jahren für iPhones und iPads. Seit iPhone16 Pro Max stürzt der RAM SCAN ab. Mit dieser neuen Version habe ich gehofft, daß diese Problem behoben sei! Leider tritt es hier auch wieder auf.

### 1/5 — Help!

*2026-02-03, version 3.3.4*

How do I adjust the settings to make it stop crashing?  I haven't been able to use it at all.

### 1/5 — Crashing Every Time on iOS 26.2.1 and iPhone 17 Pro!

*2026-02-02, version 3.3.4*

This handy app is Crashing Every Time on iOS 26.2.1 and iPhone 17 Pro!  Please fix it because I want to give you 5 stars !👍🏻

### 4/5 — Не работает, программа зарывается вместо очистки кэш , систему чистит хорошо. Исправьте , про версия

*2026-01-02*

iPhone 17 air iOS 26.2

### 5/5 — Free Version Has Too Many ads!

*2025-12-05, version 3.3.4*

Always interrupts with ads.

### 1/5 — Doesn’t work anymore

*2025-11-28, version 3.3.4*

Since iOS 18, this app does not work.

### 4/5 — Memory input output.

*2025-11-22, version 3.3.4*

I believe it is an excellent app to run performance checks based on activity.

## Frequently asked questions about Device Tester Pro

### What does Smart Memory Pro do?

This app allows you to check detailed system information about your device. It provides insights into memory (RAM) usage, disk space, CPU activity, network traffic, battery status, and general system information.

### What are the key features of this system checker?

Key features include the ability to monitor RAM usage, track disk usage, view CPU load, analyze network activity, and check battery health. It offers a comprehensive overview of your device's system performance.

### Is Smart Memory Pro free to use?

Yes, the application is available for free. There are no in-app purchases or advertisements mentioned, indicating a completely free experience for users.

### Who is this app designed for?

This app is designed for users who are interested in understanding and monitoring their device's performance. It's useful for anyone who wants to keep an eye on system resources like RAM, CPU, and storage.

## Version history (last 5 releases)

### 27.0.1 — 2026-09-26

Here’s what’s new in this update:

• Fixed bugs.

Thank you for choosing our app!

### 27.0 — 2026-09-25

Here’s what’s new in this update:

- NEW FEATURES
• Introducing Device Tester for hardware diagnostics and component checks
• Added new tools: QR Code Generator, Storage Cleaner, Random Selection Tool, and Clear Clipboard
• Added VPN information

- IMPROVEMENTS
• Completely redesigned and rewritten with SwiftUI, featuring a modern UI optimized for iOS 26 and later
• Improved iPad multitasking support
• Better performance, smoother experience, and improved stability
• Built with the iOS 26 SDK

- CHANGES
• The app has been renamed to "Device Tester - System Checker"
• Removed legacy features that are no longer supported on modern iOS versions

- BUG FIXES
• Fixed crashes and various other bugs
• Improved overall app stability

Thanks for continuing to use our app! We hope you enjoy this major update and the new tools and features. Your support means a lot to us!

### 3.3.4 — 2015-03-05

This update from Apple will improve the functionality of this app. No new features are included.

- Fix minor GUI (CPU Graph).

### 3.3.3 — 2015-02-27

- Change information about Memory: "Active" Memory also includes "Inactive" memory.

### 3.3.1 — 2015-02-12

- RETURN: After we fix some bugs, today, Memory Scanner was returned in this version. Thanks for your patient!
- NEW FEATURE: Disk Scanner (only for Pro version) clean junk / cache files on disk.

## Apps similar to Device Tester Pro

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [System Status Pro: hw monitor](https://appshunter.io/ios/app/system-status-pro-hw-monitor/id401457165) | 4.8 (5,439) | $3.99 | Utilities |
| [SYSMonitor - System Status Wgt](https://appshunter.io/ios/app/sysmonitor-system-status-wgt/id937687645) | 3.6 (38) | Free | Utilities |
| [CPU Monitor - RAM,OS & Battery](https://appshunter.io/ios/app/cpu-monitor-ramos-and-battery/id1117276897) | 4.0 (4) | Free | Utilities |
| [G-CPU:Monitor CPU, RAM, Widget](https://appshunter.io/ios/app/g-cpumonitor-cpu-ram-widget/id1621480114) | 4.7 (661) | Free | Utilities |
| [Usage Device Monitor](https://appshunter.io/ios/app/usage-device-monitor/id970353453) | 4.6 (3,852) | Free | Utilities |
| [Clean Up Smart Cache Сleaner](https://appshunter.io/ios/app/clean-up-smart-cache-leaner/id1612400580) | 4.4 (276) | Free | Utilities |

## More apps by Phan Nhut

- [Device Tester - System Checker](https://appshunter.io/ios/app/device-tester-system-checker/id873671623)
- [Memory & Disk Scanner - Check System Information](https://appshunter.io/ios/app/memory-and-disk-scanner-check-system-information/id923813218)
- [Folder Lock - Hide Photo,Video](https://appshunter.io/ios/app/folder-lock-hide-photovideo/id1015929512)
- [Password Lock Private Photo & Video - Don't Touch This](https://appshunter.io/ios/app/password-lock-private-photo-and-video-dont-touch-this/id1026958017)
- [Clean & Clear Duplicate Master Contact Cleaner - Monitor & Check Memory Disk RAM Free](https://appshunter.io/ios/app/clean-and-clear-duplicate-master-contact-cleaner-monitor-and-check-memory-disk-ram-free/id1027423435)

All apps by Phan Nhut: https://appshunter.io/developer/849063753

## Related topics

[ram memory](https://appshunter.io/ios/topics/ram-memory) · [device tester](https://appshunter.io/ios/topics/device-tester) · [hardware device](https://appshunter.io/ios/topics/hardware-device) · [check pro](https://appshunter.io/ios/topics/check-pro)

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*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 2026-09-30.*