# 奈可阅读 vs Air Ruler

The clearest difference is price: 奈可阅读 at Free against Air Ruler's $0.99. 奈可阅读 also leads on in-app purchases (none vs 3). Air Ruler's advantage is ads (none vs shown). On device support and iOS requirement there is nothing between them.

奈可阅读 is free to download; Air Ruler costs $0.99 up front. Air Ruler sells 3 in-app purchases, starting at $2.99 per month. 奈可阅读 asks for nothing beyond the download.

## The numbers

| Metric | 奈可阅读 | Air Ruler |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id6501985663/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 14 months | — |
| Size | 31 MB | 7 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [贤亮 李](https://appshunter.io/developer/1532858506) | [乐祥 胡](https://appshunter.io/developer/1572365721) |

## What reviewers say

### 奈可阅读

[App page](https://appshunter.io/ios/app/id6501985663)

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

**In-app purchases:** none


### Air Ruler

[App page](https://appshunter.io/ios/app/air-ruler-objects-measure/id6763083628)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ruler Premium - 30days | $2.99 | per month |
| Ruler premium - yearly | $8.99 | per year |
| Ruler Premium - lifetime | $29.99 | one-time |


## Frequently asked questions

### Is 奈可阅读 free?

奈可阅读 is free to download, with no in-app purchases.

### Is Air Ruler free?

Air Ruler costs $0.99, and also offers in-app purchases.

### Do 奈可阅读 or Air Ruler have ads?

奈可阅读 shows ads; Air Ruler 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.*