# Architects Ruler vs 量尺 Ruler

The clearest difference is in-app purchases: 量尺 Ruler at none against Architects Ruler's 1. 量尺 Ruler also leads on update cadence (every 6 days vs every 3 months) and iOS requirement (16.0 vs 26.0). On price, ads and device support there is nothing between them.

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

Architects Ruler ships an update every 3 months, 量尺 Ruler every 6 days. The most recent releases landed on October 17, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Architects Ruler | 量尺 Ruler |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 days** |
| Size | 4 MB | 5 MB |
| Requires iOS | 26.0 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Gijs Raggers](https://appshunter.io/developer/1438841415) | [禹焓 颜](https://appshunter.io/developer/6802085634) |

## What reviewers say

### Architects Ruler

[App page](https://appshunter.io/ios/app/architects-ruler/id6755367822)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime scales menu | $0.99 | 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 Architects Ruler free?

Architects 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 Architects Ruler or 量尺 Ruler have ads?

Neither Architects Ruler nor 量尺 Ruler shows ads.

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

Architects Ruler ships an update every 3 months, and 量尺 Ruler every 6 days. Most recently, Architects Ruler was updated on October 17, 2026 and 量尺 Ruler on October 8, 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.*