# 单价对比 vs Simple Ruler

The clearest difference is ads: 单价对比 at none against Simple Ruler's shown. Simple Ruler's advantage is iOS requirement (13.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.

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

## The numbers

| Metric | 单价对比 | Simple Ruler |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/simple-ruler-tape-measure/id6794847902/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | — | Every 2 days |
| Monetization | — | Ad-supported |
| Size | 0 MB | 25 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hangzhou Qiheng Technology Co., Ltd.](https://appshunter.io/developer/1735651855) | [SATO TOMOMITUS](https://appshunter.io/developer/1615336235) |

## What reviewers say

### 单价对比

[App page](https://appshunter.io/ios/app/id6479344079)

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

**In-app purchases:** none


### Simple Ruler

[App page](https://appshunter.io/ios/app/simple-ruler-tape-measure/id6794847902)

Transform your phone into a versatile measuring tool. Accurately measure length, width, and angles with various modes and easy calibration. Works offline and respects your privacy.

**Highlights:** Ruler and protractor functionality, Multiple measuring modes (simple, single/dual cursor, width x height), Screen calibration for accuracy, Offline functionality, Dark mode support, Privacy-focused design

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

**In-app purchases:** none


## Frequently asked questions

### Is 单价对比 free?

单价对比 is free to download, with no in-app purchases.

### Is Simple Ruler free?

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

### Do 单价对比 or Simple Ruler have ads?

Simple Ruler shows ads; 单价对比 does not.

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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.*