# Epic Ruler vs 尺子测量

The clearest difference is in-app purchases: Epic Ruler at none against 尺子测量's 5. 尺子测量's advantage is ads (none vs shown) and update cadence (weekly vs every 17 months). On price and device support there is nothing between them.

Both are free to download. 尺子测量 sells 5 in-app purchases, starting at $1.99 per 7 days. Epic Ruler asks for nothing beyond the download.

Epic Ruler ships an update every 17 months, 尺子测量 weekly. The most recent releases landed on October 2, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Epic Ruler | 尺子测量 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (4 ratings)](https://appshunter.io/ios/app/epic-ruler/id982728131/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 17 months | **Weekly** |
| Monetization | Free | — |
| Size | 11 MB | 30 MB |
| Requires iOS | 26.0 | **11.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Chih-Hao Chen](https://appshunter.io/developer/618207820) | [然 杨](https://appshunter.io/developer/1630415499) |

## What reviewers say

### Epic Ruler

[App page](https://appshunter.io/ios/app/epic-ruler/id982728131)

Transform your smartphone into a portable measuring tool. Accurately measure lengths in both inches and centimeters directly from your device.

**Highlights:** Converts phone to ruler, Measures in inches, Measures in centimeters, Pocket-sized utility

**Features:** macOS Compatibility

**In-app purchases:** none


### 尺子测量

[App page](https://appshunter.io/ios/app/and/id6444145798)

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 罄如纤尺子测量：周高级订阅服务 | $1.99 | per 7 days |
| 尺子测量：周高级订阅服务 | $2.99 | per 7 days |
| 罄如纤尺子测量：季度高级订阅服务 | $14.99 | per 3 months |
| 尺子测量：季度高级服务订阅 | $24.99 | per 3 months |
| 尺子测量：季度高级订阅服务 | $30.99 | per 3 months |


## Frequently asked questions

### Is Epic Ruler free?

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

### Is 尺子测量 free?

尺子测量 is free to download, with in-app purchases available.

### Do Epic Ruler or 尺子测量 have ads?

Epic Ruler shows ads; 尺子测量 does not.

### Which is updated more often, Epic Ruler or 尺子测量?

Epic Ruler ships an update every 17 months, and 尺子测量 weekly. Most recently, Epic Ruler was updated on October 2, 2026 and 尺子测量 on October 7, 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.*