# Ruler vs Scale Ruler

The clearest difference is in-app purchases: Ruler at none against Scale Ruler's 1. Ruler also leads on device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

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

## The numbers

| Metric | Ruler | Scale Ruler |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Size | 28 MB | 5 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Al-rahaal Explorer For General Trading, Training And Development Company](https://appshunter.io/developer/1015710320) | [佳 赵](https://appshunter.io/developer/6802149278) |

## What reviewers say

### Ruler

[App page](https://appshunter.io/ios/app/ruler/id6789526671)

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

**In-app purchases:** none


### Scale Ruler

[App page](https://appshunter.io/ios/app/scale-ruler-pocket-ruler/id6802178983)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Scale Ruler Pro | $1.99 | one-time |


## Frequently asked questions

### Is Ruler free?

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

### Is Scale Ruler free?

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

### Do Ruler or Scale Ruler have ads?

Neither Ruler nor Scale Ruler shows ads.

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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.*