# Device Monitor² — System activity info

> Comprehensive system activity and sensor information for Apple devices. (iPhone/iPad app by Fast-Devs Project.)

- Source: https://appshunter.io/ios/app/device-monitor/id1522870046 (this page in markdown: same URL + `.md`)
- Developer: [Fast-Devs Project](https://appshunter.io/developer/380985711)
- Category: Developer Tools, Reference
- Price: Free with in-app purchases
- Rating: 4.70/5 from 9,162 App Store ratings · 418 written reviews indexed
- Age rating: 4+
- Requires: iOS 18.0 · 62 MB
- Languages: American English, Arabic, Armenian, Czech, French (France), German (Germany), Italian, Japanese, Korean, Polish and 6 more
- Released: 2021-01-16
- Data updated: 2026-08-28
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/device-monitor/id1522870046/reviews.md

## What is Device Monitor²?

Device Monitor² is a one-of-a-kind app designed for iPhone, iPad, Apple Watch and Mac, providing all the essential information about your device at a glance, quickly and effortlessly. Discover which sensors apps have access to and take control of your privacy.  

Why choose Device Monitor²?  
Here are some of its main features:  
• Clear and intuitive data visualization;
• Detailed information about:  
   - DEVICE,  
   - SENSORS,  
   - RAM,  
   - STORAGE,  
   - CPU,  
   - GPU,  
   - NETWORK,  
   - BATTERY,  
   - DISPLAY,  
   - CAMERA.  
• Shortcuts to the Shortcuts app;
• Shortcuts to the Control Center (requires iOS 18);
• Customizable widgets for StandBy Mode, Lock Screen and the Home Screen;
• Options to hide or reorder panels according to your needs;
• App icon customization.  

Unlock advanced features with additional packs:  
• PRO Kit:  
   - Access to all features of other in-app purchases (present and future);
   - Deep memory cleaning;
   - Support for opening .synced files;
   - Copy and paste data displayed in the app.
• PiP Kit:
   - Access to Picture-in-Picture mode (both “compact” and “extended” modes) for real-time monitoring of:
       → RAM,
       → CPU,
       → NETWORK.
• Test Kit:  
   - Complete testing of device sensors, including:  
       → GPS,  
       → Compass,  
       → Altimeter,  
       → Accelerometer,  
       → Shake,
       → Magnetometer,  
       → Gyroscope,  
       → Barometer,  
       → Device Motion,  
       → Motion Coprocessor,  
       → Pedometer,  
       → Bluetooth,  
       → iBeacon,  
       → Microphone,  
       → Volume,  
       → Speakers,  
       → Proximity Sensor,  
       → NFC,  
       → Touch ID,  
       → Vibration and Haptic Feedback,  
       → Ping,  
       → Traceroute,  
       → DNS Lookup,  
       → Acid3,  
       → Speed Test,  
       → Network Device Scanner,  
       → Brightness,  
       → Multi-touch,  
       → Screen Color,  
       → Camera,  
       → Flash.  
• Report Kit:  
   - Export data displayed in the app as a PDF, CSV, XLSX or RFT document.  
• Notification Kit:  
   - Customizable notifications for:  
       → RAM usage exceeding limits,
       → Device temperature reaching abnormal levels.  
• Ads Kit:  
   - Remove ads from the app.  


The app does not collect any personal data or even non-personal data. Why? Simple: We’re not interested!
Oh, and don’t forget: the app is FREE!

## Key features

- Detailed device information
- Sensor access and privacy control
- Customizable widgets
- Advanced sensor testing
- Data export and reporting
- Customizable notifications

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| PRO Kit | $2.99 | one-time |
| Ads Kit | $0.99 | one-time |
| Report Kit | $0.49 | one-time |
| Notification Kit | $0.49 | one-time |
| Test Kit | $0.99 | one-time |
| PiP Kit | $0.99 | one-time |


## Chart rankings

- #33 in Top Free · Developer Tools (US App Store)
- #41 in Top Grossing · Developer Tools (US App Store)

## What do users think of Device Monitor²?

Overall sentiment: positive

**Pros**

- 🚀 Effective RAM cleaning
- 🔍 Detailed device information
- 🔧 Useful toolkit features
- 💰 Fair one-time pricing
- 📊 Helpful performance monitoring

**Cons**

- 🐛 RAM cleaning issues after updates
- 🔌 High background battery usage
- 🕰️ Slow RAM cleaning process
- 🔍 Missing some device details

**Commonly reported bugs**

- RAM cleaning function crashes on iOS 16.1
- Carrier information displaying incorrectly

**Most requested features**

- Dark mode option
- In-game FPS display
- More customizable widgets
- Breakdown of resource usage by app

## Recent user reviews (10 of 418)

All indexed reviews: https://appshunter.io/ios/app/device-monitor/id1522870046/reviews.md

### 3/5 — good

*2026-08-04, version 26.6.1*

it is good because it is very accurate and worth every secound

### 2/5 — Free App is no better than already available tools

*2026-08-04, version 26.6.1*

No need to bother, nothing important here. Free is no better than on board review. Cleaning is the game and its all PAY PAY

### 1/5 — ***RANDOMLY SHUTS ITSELF DOWN***

*2026-08-02, version 26.6.1*

The app will not remain active in the background.  It randomly shuts itself down and has to be restarted.  There are better apps out there, chose something more reliable!

### 2/5 — Please fix the color of the app

*2026-07-15, version 26.6.1*

There are so many apps that are white. I keep looking for the black app with the green details. Doesn’t matter what I choose in the settings, it stays white. 

Please fix it and I’ll delete this review. Otherwise you’re golden.  This has be the most frustrating design change ever. I get it, you want to make something new and fresh - but let people choose legacy design. It was one of the most unique standout apps for its display.  Now I literally can’t stand it.

### 5/5 — Cool

*2026-07-15, version 26.6.1*

Best

### 5/5 — Great informative app

*2026-07-11, version 26.6.1*

We need more informations ℹ️ on the device realtime temperature 🤒 it’s confusing when I open the link 🔗 

And more realtime information ℹ️ on the ram usage with accuracy

### 5/5 — Excellent

*2026-07-11, version 26.6.1*

Would it be possible to have the option for dynamic island live activities and pip when it comes to monitors?

Edit, sorry dev, Apple can really be ridiculous with all these restrictions stifling any kind of innovation. ☹️

### 4/5 — Not really sure I didn’t do anything to my phone

*2026-07-10, version 26.6.1*

Cool all layout though looking for something to change my WebKit (no st) let me know

### 5/5 — Rare Find

*2026-07-10, version 26.6.1*

I have a new iPad Air M4 but still enjoy my old 8th Gen regular iPad. It doesn’t want to give up; so, it gets equal time. That being said, this old 8th Gen iPad has a first generation bionic chip (still a cool name) and just the standard 3 GB of DDR. The last few updates are making the old iPad show its age. There used to be plenty of apps to free up RAM but not so much anymore. This program does a deep RAM clean that snaps my old iPad back to where it can handle the new IOSs and continue for a multiple application session workout. Your program will be fun to run on the M4 Air with 12GB RAM! Thanks.

### 5/5 — This is a good app

*2026-07-05*

Very nice very nice beta good app u made

## Frequently asked questions about Device Monitor²

### What does Device Monitor² do?

Device Monitor² provides a comprehensive overview of your device's system activity, including detailed information about its hardware, sensors, RAM, storage, CPU, GPU, network, and battery. It also allows you to discover which sensors apps have access to, giving you control over your privacy.

### What are the key features of Device Monitor²?

Key features include clear and intuitive data visualization for various device components, sensor testing, customizable widgets for home and lock screens, app icon customization, and shortcuts to the Shortcuts app. Advanced features like deep memory cleaning, live activity for memory, and data export are available through optional in-app purchases.

### Is Device Monitor² free to use?

The app is free to download and use, offering essential system information. Advanced features and the removal of ads are available through optional in-app purchases, such as the PRO Kit, Test Kit, Report Kit, Notification Kit, and Ads Kit.

### What devices is Device Monitor² compatible with?

Device Monitor² is designed for iPhone, iPod Touch, iPad, and Apple Watch. It is also compatible with Mac (equipped with M1 processors and later) and Apple Vision Pro, though available functions may be limited on these platforms.

### What are some common use cases for Device Monitor²?

Common use cases include monitoring device performance and resource usage, testing the functionality of device sensors, managing app permissions for enhanced privacy, and utilizing customizable widgets for quick access to system information. Users can also export data for detailed analysis or troubleshooting.

## Version history (last 5 releases)

### 26.6.1 — 2026-07-10

Thank you for using Device Monitor²!
We’re constantly improving the app to provide you with an experience that’s faster, more stable, and more comprehensive. 
This update introduces new features and optimizations, many of which were inspired by your feedback.

What’s New:
* Added a CPU PiP core legend.
* Added the new “Flashing Colors” display test to the Test Kit.
* Added the option to choose your preferred measurement units in the app settings (PRO Kit needed).
* Added a new button that provides a detailed explanation of every field on the detail pages.
* Minor bug fixes and performance improvements.

Thank you for being part of the Device Monitor² community!

### 26.6.0 — 2026-06-23

Thank you for using Device Monitor²!
We’re constantly improving the app to provide you with an experience that’s faster, more stable, and more comprehensive. 
This update introduces new features and optimizations, many of which were inspired by your feedback.

What’s New in This Version:
• Added a wealth of new information to the DEVICE, RAM, STORAGE, CPU, GPU, BATTERY, DISPLAY, and CAMERA sections.
• Where available, some of the new information has also been added to Apple Watch.
• The PDF report has been updated to include the new information.
• Added support for the Vietnamese language.
• Improved localization, user interface, and overall stability.

Thank you for being part of the Device Monitor² community!

### 26.5.0 — 2026-06-10

Thank you for using Device Monitor²!
We’re constantly improving the app to provide you with an experience that’s faster, more stable, and more comprehensive. 
This update introduces new features and optimizations, many of which were inspired by your feedback.

What’s New in This Version:
• New “PiP Kit”: View real-time information on RAM, CPU, and NETWORK wherever you want thanks to Picture-in-Picture support.
• Improved NETWORK section: Added new detailed information for both iOS and watchOS.
• Updated alternative icons: the set of available icons has been refreshed, now in iOS 26 style, to customize the app.
• New “Shake” test: now available in the “Test Kit” to verify that the motion sensor is working properly.
• General optimizations: bug fixes and graphical improvements for an even smoother and more enjoyable experience.

Thank you for being part of the Device Monitor² community!

### 26.1.0 — 2025-11-04

Thanks for using Device Monitor²!
We’re always working to make the app faster, more reliable, and easier to use.
This update brings exciting improvements based on your valuable feedback.

What’s New in This Version:
• added a new widget for the Home Screen for the DEVICE section;
• added graphs showing the usage of each individual CPU core, even on Apple Watch;
• for "Report Kit" added the ability to export reports in the following new formats: .csv, .xlsx, and .rtf;
• after each in-app purchase, each unlocked feature will now be marked with a special badge;
• fixed the magnetometer test;
• fixed the load of each CPU processor in CPU details;
• many bug fixes and graphical improvements.


Thanks for being part of the Device Monitor² community!

### 26.0.0 — 2025-10-13

Thanks for using Device Monitor²!
We’re always working to make the app faster, more reliable, and easier to use.
This update brings exciting improvements based on your valuable feedback.

What’s New in This Version:
• Full support for iOS 26’s new design language for a seamless experience;
• Compatibility with the latest iPhone and Apple Watch models;
• Refreshed app icon, now fully optimized for iOS 26;
• RAM, STORAGE, and CPU shortcuts are now accessible via the new iPadOS 26 menu bar (File menu);
• Faster RAM cleanup with updated shortcuts, no need to open the app;
• New Control Center shortcuts on Apple Watch, for quicker access;
• Expanded Shortcuts support on Apple Watch, for powerful automations on your wrist;
• Improved compatibility with Stage Manager on iPad running iPadOS 26;
• All charts have been rebuilt using native SwiftUI, eliminating third-party dependencies for better performance;
• Minor bug fixes and under-the-hood improvements to keep things running smoothly.

Thanks for being part of the Device Monitor² community!

## Apps similar to Device Monitor²

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Device Monitor Z: CPU x RAM OS](https://appshunter.io/ios/app/device-monitor-z-cpu-x-ram-os/id6450931919) | 4.6 (256) | Free | Developer Tools |
| [Sensor - Device Monitor](https://appshunter.io/ios/app/sensor-device-monitor/id6476280511) | 4.7 (52) | Free | Developer Tools |
| [Device Info Toolkit](https://appshunter.io/ios/app/device-info-toolkit/id1529223828) | 4.3 (15) | Free | Developer Tools |
| [Device Info Tool](https://appshunter.io/ios/app/device-info-tool/id6448629269) | 4.0 (4) | Free | Developer Tools |
| [HTML Editor](https://appshunter.io/ios/app/html-editor/id1580431405) | 4.2 (819) | Free | Developer Tools |
| [Bluetooth Inspector](https://appshunter.io/ios/app/bluetooth-inspector/id1509085044) | 4.6 (1,535) | Free | Developer Tools |

## More apps by Fast-Devs Project

- [iWindRose²](https://appshunter.io/ios/app/iwindrose/id1403142267)

All apps by Fast-Devs Project: https://appshunter.io/developer/380985711

## Related topics

[system monitor](https://appshunter.io/ios/topics/system-monitor) · [activity monitor](https://appshunter.io/ios/topics/activity-monitor) · [device manager](https://appshunter.io/ios/topics/device-manager) · [hardware monitor](https://appshunter.io/ios/topics/hardware-monitor) · [phone health](https://appshunter.io/ios/topics/phone-health) · [ram memory](https://appshunter.io/ios/topics/ram-memory) · [cpu monitor](https://appshunter.io/ios/topics/cpu-monitor) · [system activity monitors](https://appshunter.io/ios/topics/system-activity-monitors) · [device monitor](https://appshunter.io/ios/topics/device-monitor) · [memclean](https://appshunter.io/ios/topics/memclean) · [cpe monitor](https://appshunter.io/ios/topics/cpe-monitor) · [performance monitor](https://appshunter.io/ios/topics/performance-monitor) · [device monitor 2](https://appshunter.io/ios/topics/device-monitor-2) · [device checker](https://appshunter.io/ios/topics/device-checker) · [phone info](https://appshunter.io/ios/topics/phone-info) · [system activity monitor](https://appshunter.io/ios/topics/system-activity-monitor) · [memory cleaner](https://appshunter.io/ios/topics/memory-cleaner) · [ram cleaner](https://appshunter.io/ios/topics/ram-cleaner) · [system information](https://appshunter.io/ios/topics/system-information) · [system status](https://appshunter.io/ios/topics/system-status)

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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 2026-08-28.*