# Scale Ratio vs Scale Conversion Calculator

The clearest difference is rating: Scale Conversion Calculator at 4.5 against Scale Ratio's 3.7. Scale Conversion Calculator also leads on in-app purchases (none vs 1) and review sentiment (100% vs 83%). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Scale Ratio sells 1 one-off in-app purchase. Scale Conversion Calculator asks for nothing beyond the download.

Scale Conversion Calculator holds the better App Store score, 4.5 against 3.7. Both are backed by a comparable volume of ratings — 3 and 4 respectively. Written reviews point the same way: 83% of Scale Ratio's written reviews are positive against 100% of Scale Conversion Calculator's.

Scale Ratio ships an update fortnightly, Scale Conversion Calculator every 5 days. The most recent releases landed on August 14, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | Scale Ratio | Scale Conversion Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/scale-ratio/id1448744741/reviews) | **[4.5 (4 ratings)](https://appshunter.io/ios/app/scale-conversion-calculator/id1528811624/reviews)** |
| Number of ratings | 3 | **4** |
| Positive reviews | 83.3% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 5 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 25 MB | 20 MB |
| Requires iOS | **10.0** | 11.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Adrien Brecheteau](https://appshunter.io/developer/956859837) | [TMS International LLC](https://appshunter.io/developer/1526562863) |

## What reviewers say

### Scale Ratio

[App page](https://appshunter.io/ios/app/scale-ratio/id1448744741)

Easily convert distances between any scales for projects like architecture and model building. Input your measurements and desired scale to instantly calculate scaled distances.

**Highlights:** Convert distances between any scales, Supports architecture and modeling projects, Instant calculation of scaled distances, User-friendly input for distance and scale

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Delete Ads in the app | $4.99 | one-time |


### Scale Conversion Calculator

[App page](https://appshunter.io/ios/app/scale-conversion-calculator/id1528811624)

This utility app facilitates weight conversions between Metric, Gross, and Net tons. It also allows for the calculation of price rates based on weight and other related calculations.

**Highlights:** Metric ton conversion, Gross ton conversion, Net ton conversion, Price rate per weight calculation, Other weight-related calculations

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Scale Ratio free?

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

### Is Scale Conversion Calculator free?

Scale Conversion Calculator is free to download, with no in-app purchases.

### Which has better reviews, Scale Ratio or Scale Conversion Calculator?

Scale Conversion Calculator is rated higher. Scale Ratio averages 3.7 out of 5 from 3 ratings, while Scale Conversion Calculator averages 4.5 from 4 ratings.

### Do Scale Ratio or Scale Conversion Calculator have ads?

Neither Scale Ratio nor Scale Conversion Calculator shows ads.

### Which is updated more often, Scale Ratio or Scale Conversion Calculator?

Scale Ratio ships an update fortnightly, and Scale Conversion Calculator every 5 days. Most recently, Scale Ratio was updated on August 14, 2026 and Scale Conversion Calculator on June 4, 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.*