# irBoard vs Ruler

The clearest difference is price: Ruler at Free against irBoard's $599.99. irBoard's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

Ruler is free to download; irBoard costs $599.99 up front. Ruler sells 1 one-off in-app purchase. irBoard asks for nothing beyond the download.

irBoard ships an update every 3 weeks, Ruler every 5 months. The most recent releases landed on August 3, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | irBoard | Ruler |
| --- | --- | --- |
| Price | $599.99 | **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 | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 5 months |
| Monetization | — | Free with in-app purchases |
| Size | 40 MB | 4 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [ITO SOFT DESIGN Inc.](https://appshunter.io/developer/311313017) | [mitsunori oishi](https://appshunter.io/developer/905649994) |

## What reviewers say

### irBoard

[App page](https://appshunter.io/ios/app/irboard/id432059914)

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

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is irBoard free?

irBoard costs $599.99, with no in-app purchases.

### Is Ruler free?

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

### Do irBoard or Ruler have ads?

Ruler shows ads; irBoard does not.

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

irBoard ships an update every 3 weeks, and Ruler every 5 months. Most recently, irBoard was updated on August 3, 2026 and Ruler on June 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.*