# Lirum Device Info 2 vs Watch Sensor Logger

The clearest difference is rating: Watch Sensor Logger at 5.0 against Lirum Device Info 2's 4.0. Watch Sensor Logger also leads on in-app purchases (none vs 3). Lirum Device Info 2's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 25 months). On price 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. Watch Sensor Logger asks for nothing beyond the download.

Watch Sensor Logger holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Lirum Device Info 2 has 290 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 77% of Lirum Device Info 2's written reviews are positive against 50% of Watch Sensor Logger's, so the app with the better star average is not the one people write more warmly about.

Lirum Device Info 2 ships an update every 3 weeks, Watch Sensor Logger every 25 months. The most recent releases landed on October 29, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Lirum Device Info 2 | Watch Sensor Logger |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (290 ratings)](https://appshunter.io/ios/app/lirum-device-info-2/id591660734/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/watch-sensor-logger/id1634449655/reviews)** |
| Number of ratings | **290** | 1 |
| Positive reviews | **77.1% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 25 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 995 MB | 17 MB |
| Requires iOS | **15.2** | 17.0 |
| Devices | **iPhone, iPad, iPod, Mac, Apple TV, Apple Watch, Vision Pro** | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Lirum Labs Technologies Inc.](https://appshunter.io/developer/591453719) | [yuya kanbetsunawa](https://appshunter.io/developer/1597026161) |

## What reviewers say

### 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


### Watch Sensor Logger

[App page](https://appshunter.io/ios/app/watch-sensor-logger/id1634449655)

Log detailed motion and GPS data from your Apple Watch. Export sensor readings like acceleration, attitude, and location as a CSV file for analysis. This app is exclusively designed for Apple Watch.

**Highlights:** Log sensor data, GPS tracking, Export to CSV, Acceleration logging, Attitude data, Time stamping

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Lirum Device Info 2 free?

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

### Is Watch Sensor Logger free?

Watch Sensor Logger is free to download, with no in-app purchases.

### Which has better reviews, Lirum Device Info 2 or Watch Sensor Logger?

Watch Sensor Logger is rated higher. Lirum Device Info 2 averages 4.0 out of 5 from 290 ratings, while Watch Sensor Logger averages 5.0 from 1 ratings.

### Do Lirum Device Info 2 or Watch Sensor Logger have ads?

Watch Sensor Logger shows ads; Lirum Device Info 2 does not.

### Which is updated more often, Lirum Device Info 2 or Watch Sensor Logger?

Lirum Device Info 2 ships an update every 3 weeks, and Watch Sensor Logger every 25 months. Most recently, Lirum Device Info 2 was updated on October 29, 2026 and Watch Sensor Logger on October 21, 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.*