# Mouse Scale vs Ring Sizer & Size Finder

The clearest difference is monetization model: Ring Sizer & Size Finder at free against Mouse Scale's freemium. Ring Sizer & Size Finder also leads on update cadence (every 2 weeks vs every 6 weeks). Mouse Scale's advantage is iOS requirement (15.1 vs 26.0). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Mouse Scale sells 2 in-app purchases, starting at $4.99 per month and Ring Sizer & Size Finder sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Mouse Scale against 5.0 for Ring Sizer & Size Finder. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

Mouse Scale ships an update every 6 weeks, Ring Sizer & Size Finder every 2 weeks. Both last shipped on October 1, 2026.

## The numbers

| Metric | Mouse Scale | Ring Sizer & Size Finder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/mouse-scale/id6743377481/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/ring-sizer-and-size-finder/id6761786932/reviews) |
| Number of ratings | 1 | **2** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 2 weeks** |
| Monetization | Freemium | **Free** |
| Size | 52 MB | 9 MB |
| Requires iOS | **15.1** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mouse Scale LLC](https://appshunter.io/developer/1802518093) | [LimeLime Labs LLC](https://appshunter.io/developer/1002915290) |

## What reviewers say

### Mouse Scale

[App page](https://appshunter.io/ios/app/mouse-scale/id6743377481)

This app helps U.S. truck drivers estimate axle weights from air suspension pressure for optimized loads, fuel savings, and safety. It offers a one-time calibration and provides instant weight results, with an optional PRO version for advanced analysis.

**Highlights:** Instant weight estimates, One-time calibration, Fuel efficiency optimization, Winter safety guidance, Advanced PRO version features, Load distribution calculations

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Light | $4.99 | per month |
| Light Annually | $49.99 | per year |


### Ring Sizer & Size Finder

[App page](https://appshunter.io/ios/app/ring-sizer-and-size-finder/id6761786932)

Easily determine your ring size using your iPhone's screen. Measure existing rings or your finger directly, with support for international sizing standards and a built-in ruler for everyday use.

**Highlights:** Accurate ring sizing by placing rings on screen, Finger width measurement for direct sizing, International size conversion (US, UK, EU, JP, CN), Built-in ruler for measuring objects, No extra tools required, Simple and intuitive interface

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ring Sizer Pro | $0.99 | one-time |


## Frequently asked questions

### Is Mouse Scale free?

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

### Is Ring Sizer & Size Finder free?

Ring Sizer & Size Finder is free to download, with in-app purchases available.

### Which has better reviews, Mouse Scale or Ring Sizer & Size Finder?

Mouse Scale and Ring Sizer & Size Finder are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do Mouse Scale or Ring Sizer & Size Finder have ads?

Neither Mouse Scale nor Ring Sizer & Size Finder shows ads.

### Which is updated more often, Mouse Scale or Ring Sizer & Size Finder?

Mouse Scale ships an update every 6 weeks, and Ring Sizer & Size Finder every 2 weeks. Most recently, Mouse Scale was updated on October 1, 2026 and Ring Sizer & Size Finder on October 1, 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.*