# AR Ruler vs 量尺 Ruler

The clearest difference is in-app purchases: 量尺 Ruler at none against AR Ruler's 3. 量尺 Ruler also leads on update cadence (every 6 days vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. AR Ruler sells 3 in-app purchases, starting at $9.99 per 7 days. 量尺 Ruler asks for nothing beyond the download.

AR Ruler ships an update fortnightly, 量尺 Ruler every 6 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | AR Ruler | 量尺 Ruler |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 6 days** |
| Monetization | Subscription | — |
| Size | 54 MB | 5 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Beijing iDOTOOLS Technology Co., Ltd](https://appshunter.io/developer/1627204739) | [禹焓 颜](https://appshunter.io/developer/6802085634) |

## What reviewers say

### AR Ruler

[App page](https://appshunter.io/ios/app/ar-ruler-tape-measure-app/id6795024006)

Transform your phone into a versatile measuring tool using augmented reality. Accurately measure length, distance, height, angles, and areas of objects and spaces with just your camera. Save and share your measurements easily.

**Highlights:** Measure length, distance, height, angle, and area, Augmented reality tape measure and ruler, Built-in level tool for alignment, Save and share measurements as photos, Switch between metric and imperial units, Protractor for angle measurement

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $9.99 | per 7 days |
| Yearly | $39.99 | per year |
| Lifetime | $68.00 | one-time |


### 量尺 Ruler

[App page](https://appshunter.io/ios/app/ruler/id6802361249)

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

**In-app purchases:** none


## Frequently asked questions

### Is AR Ruler free?

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

### Is 量尺 Ruler free?

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

### Do AR Ruler or 量尺 Ruler have ads?

Neither AR Ruler nor 量尺 Ruler shows ads.

### Which is updated more often, AR Ruler or 量尺 Ruler?

AR Ruler ships an update fortnightly, and 量尺 Ruler every 6 days. Most recently, AR Ruler was updated on October 24, 2026 and 量尺 Ruler on October 24, 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.*