# Temp Logger App vs Mobile Master

The clearest difference is rating: Mobile Master at 4.5 against Temp Logger App's 1.0. Mobile Master also leads on update cadence (every 6 days vs every 3 months) and ratings volume (1.2K vs 1). Temp Logger App's advantage is in-app purchases (none vs 3) and ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Mobile Master sells 3 in-app purchases, starting at $0.49 per month. Temp Logger App asks for nothing beyond the download.

Mobile Master holds the better App Store score, 4.5 against 1.0. That said, the two scores are not equally well evidenced: Mobile Master has 1.2K ratings behind it against 1, so its average is the more settled of the two.

Temp Logger App ships an update every 3 months, Mobile Master every 6 days. The most recent releases landed on September 23, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Temp Logger App | Mobile Master |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/temp-logger-app/id1173712794/reviews) | **[4.5 (1.2K ratings)](https://appshunter.io/ios/app/mobile-master-cpu-master/id1329937809/reviews)** |
| Number of ratings | 1 | **1.2K** |
| Positive reviews | — | 72.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 6 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 39 MB | 47 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [TZONE DIGITAL TECHNOLOGY CO., LTD.](https://appshunter.io/developer/1129067230) | [东海 刘](https://appshunter.io/developer/1329937808) |

## What reviewers say

### Temp Logger App

[App page](https://appshunter.io/ios/app/temp-logger-app/id1173712794)

Record and log temperature and humidity data. This utility tool helps you track environmental conditions over time. It provides a simple interface for data recording and management.

**Highlights:** Temperature recording, Humidity logging, Environmental data tracking, Data management

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Mobile Master

[App page](https://appshunter.io/ios/app/mobile-master-cpu-master/id1329937809)

This free utility app provides detailed information about your device's hardware and software. It measures real CPU frequency, frequency reduction, and offers insights into your screen, battery, network, GPU, RAM, and sensors.

**Highlights:** Measure real CPU frequency, Monitor frequency reduction, View CPU, GPU, and RAM details, Check network speed and IP, Display battery design capacity, Access sensor data

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $0.49 | per month |
| Pro Annual | $2.99 | per year |
| Remove ads | $1.99 | one-time |


## Frequently asked questions

### Is Temp Logger App free?

Temp Logger App is free to download, with no in-app purchases.

### Is Mobile Master free?

Mobile Master is free to download, with in-app purchases available.

### Which has better reviews, Temp Logger App or Mobile Master?

Mobile Master is rated higher. Temp Logger App averages 1.0 out of 5 from 1 ratings, while Mobile Master averages 4.5 from 1.2K ratings.

### Do Temp Logger App or Mobile Master have ads?

Mobile Master shows ads; Temp Logger App does not.

### Which is updated more often, Temp Logger App or Mobile Master?

Temp Logger App ships an update every 3 months, and Mobile Master every 6 days. Most recently, Temp Logger App was updated on September 23, 2026 and Mobile Master on September 24, 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.*