# UM_Meter vs G

The clearest difference is review sentiment: G at 80% against UM_Meter's 23%. G also leads on rating (4.7 vs 2.4) and ratings volume (686 vs 17). UM_Meter's advantage is in-app purchases (none vs 4) and update cadence (every 4 days vs fortnightly). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. G sells 4 one-off in-app purchases. UM_Meter asks for nothing beyond the download.

G holds the better App Store score, 4.7 against 2.4. That said, the two scores are not equally well evidenced: G has 686 ratings behind it against 17, so its average is the more settled of the two. Written reviews point the same way: 23% of UM_Meter's written reviews are positive against 80% of G's.

UM_Meter ships an update every 4 days, G fortnightly. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | UM_Meter | G |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.4 (17 ratings)](https://appshunter.io/ios/app/um-meter/id1439150213/reviews) | **[4.7 (686 ratings)](https://appshunter.io/ios/app/g-cpumonitor-cpu-ram-widget/id1621480114/reviews)** |
| Number of ratings | 17 | **686** |
| Positive reviews | 23.3% of reviews | **79.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Fortnightly |
| Monetization | Free | Free |
| Size | 29 MB | 47 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [亮亮 刘](https://appshunter.io/developer/1439150212) | [Hau Vu Dinh](https://appshunter.io/developer/1439334691) |

## What reviewers say

### UM_Meter

[App page](https://appshunter.io/ios/app/um-meter/id1439150213)

This utility app connects to a USB tester via Bluetooth to display data and system operations. It also offers data storage and sharing capabilities.

**Highlights:** Bluetooth connectivity to USB tester, Real-time data display, System operation monitoring, Data storage, Data sharing

**Features:** macOS Compatibility

**In-app purchases:** none


### G

[App page](https://appshunter.io/ios/app/g-cpumonitor-cpu-ram-widget/id1621480114)

Gain deep insights into your device's performance with detailed information on CPU, RAM, battery, storage, and network. Monitor key metrics, run performance tests, and generate customizable reports. Stay informed with convenient widgets and a built-in compass.

**Highlights:** Comprehensive performance dashboard, Detailed device information, CPU and battery health monitoring, Network connection clarity, Customizable reports (text/PDF), Convenient widgets, Benchmarking suite

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cup of Coffee | $1.99 | one-time |
| Sandwich | $4.99 | one-time |
| Buy Lunch | $9.99 | one-time |
| Major donor | $99.99 | one-time |


## Frequently asked questions

### Is UM_Meter free?

UM_Meter is free to download, with no in-app purchases.

### Is G free?

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

### Which has better reviews, UM_Meter or G?

G is rated higher. UM_Meter averages 2.4 out of 5 from 17 ratings, while G averages 4.7 from 686 ratings.

### Do UM_Meter or G have ads?

Neither UM_Meter nor G shows ads.

### Which is updated more often, UM_Meter or G?

UM_Meter ships an update every 4 days, and G fortnightly. Most recently, UM_Meter was updated on November 2, 2026 and G on November 3, 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.*