# SYS Activity Manager vs Lirum Device Info 2

The clearest difference is rating: Lirum Device Info 2 at 4.0 against SYS Activity Manager's 2.6. Lirum Device Info 2 also leads on review sentiment (77% vs 42%) and update cadence (every 3 weeks vs every 4 months). SYS Activity Manager's advantage is in-app purchases (none vs 3) and iOS requirement (8.0 vs 15.2). On price and ads there is nothing between them.

Both are free to download. Lirum Device Info 2 sells 3 in-app purchases, starting at $0.99 per month. SYS Activity Manager asks for nothing beyond the download.

Lirum Device Info 2 holds the better App Store score, 4.0 against 2.6. Both are backed by a comparable volume of ratings — 89 and 288 respectively. Written reviews point the same way: 42% of SYS Activity Manager's written reviews are positive against 77% of Lirum Device Info 2's.

SYS Activity Manager ships an update every 4 months, Lirum Device Info 2 every 3 weeks. The most recent releases landed on October 9, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | SYS Activity Manager | Lirum Device Info 2 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.6 (89 ratings)](https://appshunter.io/ios/app/sys-activity-manager/id447374159/reviews) | **[4.0 (288 ratings)](https://appshunter.io/ios/app/lirum-device-info-2/id591660734/reviews)** |
| Number of ratings | 89 | **288** |
| Positive reviews | 42.1% of reviews | **77.1% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 19 MB | 995 MB |
| Requires iOS | **8.0** | 15.2 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac, Apple TV, Apple Watch, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [Sohel Mazumder](https://appshunter.io/developer/1501146911) | [Lirum Labs Technologies Inc.](https://appshunter.io/developer/591453719) |

## What reviewers say

### SYS Activity Manager

[App page](https://appshunter.io/ios/app/sys-activity-manager/id447374159)

Monitor your device's background processes, battery life, and network activity. This app provides insights into memory usage, disk space, and connection statuses, helping you diagnose network issues and optimize performance. It's designed for both expert and non-expert users.

**Highlights:** Monitor background processes and apps, Track device battery life and charging status, Analyze network connection and speed, Summarize disk usage, Visualize memory allocation, Diagnose network problems

**Features:** macOS Compatibility

**In-app purchases:** none


### Lirum Device Info 2

[App page](https://appshunter.io/ios/app/lirum-device-info-2/id591660734)

This app provides in-depth system monitoring and hardware insights for your iPhone and iPad. It offers detailed information on CPU, memory, storage, battery, sensors, and more, along with practical testing tools. Ideal for users who want to understand their device's performance and capabilities.

**Highlights:** CPU, Memory, and Storage Monitoring, Detailed Hardware and Sensor Information, Battery and Thermal Monitoring, Network and Cellular Band Analysis, NFC Read/Write and Tag Management, Biometrics and AR Tool, Device Comparison and Timeline

**Features:** Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $0.99 | per month |
| Premium Yearly | $9.99 | per year |
| Lifetime Premium | $199.99 | one-time |

**What reviewers like**

- 🚀 Smooth and full of incredible knowledge
- 🚀 Provides accurate data with a simple UI interface
- 👍 Grants access to all device info including sensors
- 👍 Lots of interesting tools and useful info
- 👍 Provides a huge insight into device details

**What reviewers complain about**

- 🐛 Crashes on newer devices
- 🐛 Inconsistent data and inaccurate information
- 🐛 Lacks updates for new devices and iOS versions
- 🔋 Battery health information not working
- 🔒 Privacy concerns with clipboard access

**Reported bugs**

- Crashes on iPad Pro and iPhone 12
- Battery health and wear level not working
- Incorrect device compatibility information

**Requested features**

- Personalized home screen and notifications
- Advanced battery monitoring features
- Support for latest iOS and devices
- Benchmark testing capabilities


## Frequently asked questions

### Is SYS Activity Manager free?

SYS Activity Manager is free to download, with no in-app purchases.

### Is Lirum Device Info 2 free?

Lirum Device Info 2 is free to download, with in-app purchases available.

### Which has better reviews, SYS Activity Manager or Lirum Device Info 2?

Lirum Device Info 2 is rated higher. SYS Activity Manager averages 2.6 out of 5 from 89 ratings, while Lirum Device Info 2 averages 4.0 from 288 ratings.

### Do SYS Activity Manager or Lirum Device Info 2 have ads?

Neither SYS Activity Manager nor Lirum Device Info 2 shows ads.

### Which is updated more often, SYS Activity Manager or Lirum Device Info 2?

SYS Activity Manager ships an update every 4 months, and Lirum Device Info 2 every 3 weeks. Most recently, SYS Activity Manager was updated on October 9, 2026 and Lirum Device Info 2 on October 15, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*