# Mobile Master vs MetricViewer

The clearest difference is ads: MetricViewer at none against Mobile Master's shown. Mobile Master's advantage is update cadence (every 6 days vs every 5 months) and iOS requirement (12.0 vs 15.1). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Mobile Master sells 3 in-app purchases, starting at $0.49 per month and MetricViewer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Mobile Master ships an update every 6 days, MetricViewer every 5 months. The most recent releases landed on September 24, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Mobile Master | MetricViewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (1.2K ratings)](https://appshunter.io/ios/app/mobile-master-cpu-master/id1329937809/reviews)** | — |
| Number of ratings | **1.2K** | — |
| Positive reviews | 72.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 6 days** | Every 5 months |
| Monetization | Free with in-app purchases | — |
| Size | 47 MB | 56 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [东海 刘](https://appshunter.io/developer/1329937808) | [Agustin Lopez](https://appshunter.io/developer/1869435554) |

## What reviewers say

### 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 |


### MetricViewer

[App page](https://appshunter.io/ios/app/metricviewer/id6757875441)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO Version (Lifetime) | $9.99 | one-time |


## Frequently asked questions

### Is Mobile Master free?

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

### Is MetricViewer free?

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

### Do Mobile Master or MetricViewer have ads?

Mobile Master shows ads; MetricViewer does not.

### Which is updated more often, Mobile Master or MetricViewer?

Mobile Master ships an update every 6 days, and MetricViewer every 5 months. Most recently, Mobile Master was updated on September 24, 2026 and MetricViewer on September 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.*