# Ruler vs Rubato

The clearest difference is ads: Rubato at none against Ruler's shown. Rubato also leads on update cadence (every 2 days vs every 5 months). Ruler's advantage is iOS requirement (15.0 vs 26.5). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Ruler sells 1 one-off in-app purchase and Rubato sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Ruler ships an update every 5 months, Rubato every 2 days. The most recent releases landed on October 13, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Ruler | Rubato |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/ruler-scale-ruler/id919130707/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 63.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 4 MB | 10 MB |
| Requires iOS | **15.0** | 26.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [mitsunori oishi](https://appshunter.io/developer/905649994) | [Yujiro Yonetsu](https://appshunter.io/developer/6791956376) |

## What reviewers say

### Ruler

[App page](https://appshunter.io/ios/app/ruler-scale-ruler/id919130707)

This app displays various measurement scales for length, including meters and inches. It allows users to set magnification ratios and reduced scales for different applications. Users can calibrate the ruler and adjust PPI settings for accurate measurements.

**Highlights:** Display various measurement scales, Set magnification ratios, Set reduced scales, Measure in meters and inches, Free mode for custom scales, Calibration for accuracy, PPI setting

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hide Ads | $0.99 | one-time |


### Rubato

[App page](https://appshunter.io/ios/app/rubato-stack-your-day/id6805778408)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 14-Day Trial | Free | one-time |
| Rubato (One-Time Purchase) | $12.99 | one-time |


## Frequently asked questions

### Is Ruler free?

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

### Is Rubato free?

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

### Do Ruler or Rubato have ads?

Ruler shows ads; Rubato does not.

### Which is updated more often, Ruler or Rubato?

Ruler ships an update every 5 months, and Rubato every 2 days. Most recently, Ruler was updated on October 13, 2026 and Rubato on October 6, 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.*