# Lirum Device Info — System activity & device specs

> Real-time system activity and device specifications viewer. (iPhone/iPad app by Rogerio Hirooka.)

- Source: https://appshunter.io/ios/app/lirum-device-info/id591453716 (this page in markdown: same URL + `.md`)
- Developer: [Rogerio Hirooka](https://appshunter.io/developer/591453719)
- Category: Utilities, Reference
- Price: $299.99
- Rating: 4.50/5 from 11 App Store ratings · 396 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.6 · 100 MB
- Languages: American English, Danish, Finnish, French (France), German (Germany), Irish, Italian, Japanese, Korean, European Portuguese and 5 more
- Released: 2013-02-06
- Data updated: 2026-08-31
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/lirum-device-info/id591453716/reviews.md

## What is Lirum Device Info?

Lirum Device Info shows real‑time system activity and published device specifications using Apple’s public APIs.

What you can see

CPU activity and memory usage (system‑wide, approximate).

Battery level & charging state (from iOS).

Live sensors: accelerometer, gyroscope, magnetometer, barometer.

Location readouts with accuracy and altitude (permission required).

Bluetooth LE: nearby advertisement info (name/UUID/RSSI).

Device specs: dimensions, weight, display resolution, wireless bands, and environmental limits, sourced from Apple’s Tech Specs for each model.

What we intentionally don’t do:

No diagnostics or hardware health assessments.

No battery wear/voltage/cycle count and no time‑remaining estimates.

No memory “optimizers” or performance‑boosting claims.

Frameworks used: UIKit (UIDevice battery level/state), Foundation (ProcessInfo thermal & Low Power Mode), Core Motion, Core Location, and Core Bluetooth.

Privacy: Sensor and network data are shown on‑device only. Location is used solely to display location/accuracy and is not stored or sent anywhere.

## Key features

- Real-time CPU and memory usage
- Battery level and charging state
- Live sensor data (accelerometer, gyroscope, etc.)
- Location readouts with accuracy
- Bluetooth LE advertisement info
- Detailed device specifications

## What do users think of Lirum Device Info?

Overall sentiment: negative

**Pros**

- 🚀 Lirum is back!
- 👍 Great app functionality and tools
- 🔍 Detailed device information

**Cons**

- 🐛 Crashes and issues with newer devices
- ⚠️ Outdated and abandoned by developers
- 💰 Paid version not worth the cost

**Commonly reported bugs**

- Unable to detect newer iPhone and iPad models
- Paid version lacks features compared to free version
- Crashes and freezes on some devices

**Most requested features**

- Update database for latest iPhone and iPad models
- Add support for iOS 12 and newer
- Improve app stability and performance

## Recent user reviews (10 of 396)

All indexed reviews: https://appshunter.io/ios/app/lirum-device-info/id591453716/reviews.md

### 1/5 — 機能劣化

*2025-12-13, version 5.0.17*

有料版に、当初あったメモリ解放機能、CPUのクロック周波数確認機能が、使用できなくなった。
返金して欲しい。

### 5/5 — old widgets are gone！

*2025-10-05, version 5.0*

with the new update the old widgets on the botton of the widgets view in the left side of the home screen are gone，please get it back i really like it

### 4/5 — ついについにUpdate !

*2025-09-24, version 5.0*

ストアでの表記は5.0ですが実際はver5.0.5です。app紹介のiPhoneスクショは旧verのままですが、、安心してください🙂ちゃんとモダンになってました🎵しかも使い勝手はほぼ前と同じです。しばらく使っていない方は、当appの設定>アップデートでデータをダウンロードしておきましょう。(ios18.7&26.0)

久しぶりに触りましたが、ツール>comparison(比較)はデータ抜けがまだまだ有りますが、timeline(製品履歴)の作り込みはなかなかおもしろでした。結論:製品仕様データベースとしてはMactrackerしか選択肢が無いのが現状。

Thanks, Hirooka-san !

### 5/5 — 待望のアップデート&メモリブーストができなくなった

*2025-09-22, version 5.0*

もうアップデートされないものだと思っていたので突然のアップデートに喜んでいます。ただ、一番重宝していたメモリブースト機能が消えてしまって戸惑っています。今後再追加される予定はあるのでしょうか？

念のため、Premium Status: unlocked (full version),
Lifetime access: active
にはなっています

### 5/5 — Lirum is back, baby!!

*2025-09-21, version 5.0*

I’ve been having to dismiss “Model not yet found in our database” for about 7 years now, but today it has been updated!  I hope other apps that have been abandoned make a comeback as well.  Thank you for reviving support for this fantastic app!

### 3/5 — Disappointed  now

*2025-09-21, version 5.0*

I used this app for a long time to clear the memory on my iPhone, not anymore after this recent update.  Now I’ll have to find another app now.

### 5/5 — Wow

*2025-09-19, version 5.0*

I’m so excited that you have chosen to not abandon this app. Thanks for the update I look forward to many more.

### 5/5 — An update!?

*2025-09-19, version 5.0*

An update! And it’s a really good update. The interface is cleaned up and far more useful. Tools look way better and have a bit more functionality. A very pleasant surprise.

### 5/5 — It’s back!

*2025-09-19, version 5.0*

I think the app was abandoned by the developer from 2017 until 2025 but it’s back now, which is great news, this app is a great tool.

### 5/5 — 2025-26 UPDATE!

*2025-09-19, version 5.0*

Omg I’m freaking out that it was finally updated after years! Looks so amazing now, finally works, and excited to use it on all the new phones!!!

## Frequently asked questions about Lirum Device Info

### What kind of system activity does this app show?

The app displays real-time CPU activity and approximate system-wide memory usage. It also shows the battery level and charging state directly from iOS. Additionally, you can view live data from sensors like the accelerometer, gyroscope, magnetometer, and barometer.

### What device specifications can I find in this app?

You can access published device specifications sourced from Apple's Tech Specs for each model. This includes details such as dimensions, weight, display resolution, supported wireless bands, and environmental limits.

### Is this app free to use?

Yes, the application is available for free. There are no in-app purchases or advertisements mentioned in the provided data.

### What information does the app NOT provide?

The app intentionally does not offer diagnostics or hardware health assessments. It also does not provide battery wear, voltage, cycle count, or time-remaining estimates. Furthermore, it does not include memory 'optimizers' or performance-boosting claims.

### What are the privacy implications of using this app?

Sensor and network data are processed and displayed on-device only. Location data, if permission is granted, is used solely for displaying location and accuracy and is not stored or transmitted elsewhere.

## Version history (last 5 releases)

### 5.0.17 — 2025-10-17

Added support for Apple Foundation local model (Apple Intelligence)

### 5.0 — 2025-09-18

All-new UI from top to bottom
Re-engineered core for speed and stability
Updated device database with the latest models/specs
New Compare: side-by-side spec comparisons
More instruments: additional sensors & real-time panels

### 4.4.3 — 2017-11-10

- Fixed spelling mistake, as pointed out by user Mr. Correa;
- Improved handling and detection of devices not found on our specifications database;
- New feature (for the full version): to export hardware browser data;
- Interface improvement: Logo background on the "About" section of the Lite version;

### 4.4.2 — 2017-11-06

- Fixed a bug that mistakenly displayed "100%" as the battery level;
- Updated for the iPhone X;
- Added a few accessibility options;
- Improved dialog interfaces;
- Stability and performance improvements;

### 4.4.0 — 2017-10-23

- Fixed bug that crashed the "battery details tool" on iPhone 8 and above;
- Force database update feature;
- New Today Widget design;
- Improvements on the Apple Watch resources and text;

## Apps similar to Lirum Device Info

| 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 |
| [NetTools - Network Utilities](https://appshunter.io/ios/app/nettools-network-utilities/id1609044208) | 4.8 (48) | Free | Utilities |
| [My Device Info!](https://appshunter.io/ios/app/my-device-info/id1126092384) | 4.5 (359) | Free | Utilities |
| [Network Analyzer Pro: IP Tools](https://appshunter.io/ios/app/network-analyzer-pro-ip-tools/id557405467) | 4.8 (9,059) | $3.99 | Utilities |
| [Device System Services - Tools](https://appshunter.io/ios/app/device-system-services-tools/id1126227676) | 4.5 (397) | Free | Utilities |
| [ActMonitor: my iPhone or iPad](https://appshunter.io/ios/app/actmonitor-my-iphone-or-ipad/id519572740) | 3.5 (22) | Free | Utilities |

## More apps by Rogerio Hirooka

- [Lirum Device Info 2](https://appshunter.io/ios/app/lirum-device-info-2/id591660734)

All apps by Rogerio Hirooka: https://appshunter.io/developer/591453719

## Related topics

[lirum device info](https://appshunter.io/ios/topics/lirum-device-info) · [lirum device info 2](https://appshunter.io/ios/topics/lirum-device-info-2) · [lirum](https://appshunter.io/ios/topics/lirum) · [lirum device info lite](https://appshunter.io/ios/topics/lirum-device-info-lite)

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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 2026-08-31.*