# 定規(Ruler)for iPad vs Ruler

The clearest difference is ads: Ruler at none against 定規(Ruler)for iPad's shown. Ruler also leads on update cadence (every 2 months vs every 5 months) and device support (3 vs 1). On price, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

定規(Ruler)for iPad ships an update every 5 months, Ruler every 2 months. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 定規(Ruler)for iPad | Ruler |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Ad-supported | — |
| Size | 1 MB | 23 MB |
| Requires iOS | 14.1 | **13.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Mayumi Kato](https://appshunter.io/developer/705832872) | [mintaek lee](https://appshunter.io/developer/1862176346) |

## What reviewers say

### 定規(Ruler)for iPad

[App page](https://appshunter.io/ios/app/rulerfor-ipad/id1148435850)

This free utility app functions as a precise digital ruler for iPads. It supports both millimeter and inch measurements, making it easy to measure any object directly on your device. Designed for simplicity and a cool user experience.

**Highlights:** Digital ruler functionality, Millimeter measurement, Inch measurement, Supports all iPad sizes, Simple and cool interface

**In-app purchases:** none


### Ruler

[App page](https://appshunter.io/ios/app/ruler-screen-measure-tool/id6757359013)

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

**In-app purchases:** none


## Frequently asked questions

### Is 定規(Ruler)for iPad free?

定規(Ruler)for iPad is free to download, with no in-app purchases.

### Is Ruler free?

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

### Do 定規(Ruler)for iPad or Ruler have ads?

定規(Ruler)for iPad shows ads; Ruler does not.

### Which is updated more often, 定規(Ruler)for iPad or Ruler?

定規(Ruler)for iPad ships an update every 5 months, and Ruler every 2 months. Most recently, 定規(Ruler)for iPad was updated on October 23, 2026 and Ruler on October 25, 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.*