# Smart Level & AR Ruler vs ATS Shield

The clearest difference is in-app purchases: ATS Shield at none against Smart Level & AR Ruler's 4. Smart Level & AR Ruler's advantage is iOS requirement (15.6 vs 18.2). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Smart Level & AR Ruler sells 4 in-app purchases, starting at $4.99 per 7 days. ATS Shield asks for nothing beyond the download.

Smart Level & AR Ruler ships an update every 2 weeks, ATS Shield weekly. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Smart Level & AR Ruler | ATS Shield |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (485 ratings)](https://appshunter.io/ios/app/smart-level-and-ar-ruler/id6698865336/reviews)** | — |
| Number of ratings | **485** | — |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 43 MB | 65 MB |
| Requires iOS | **15.6** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [卓 张](https://appshunter.io/developer/1765233606) | [MIDM Dise�o y Multimedia S de RL de CV](https://appshunter.io/developer/720869434) |

## What reviewers say

### Smart Level & AR Ruler

[App page](https://appshunter.io/ios/app/smart-level-and-ar-ruler/id6698865336)

Transform your iPhone into a versatile digital toolbox with advanced AR and AI. Measure length, area, height, and distance with precision, or utilize tools like a protractor, level, and unit converter. This app offers a comprehensive suite of utilities for various tasks.

**Highlights:** Length, Area, Height, Distance Measurement, Protractor and Unit Conversion, Level and Light Sensor, Scientific Calculator, Magnifying Glass and Compass, Flashlight

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $4.99 | per 7 days |
| VIP - Week | $9.99 | per 7 days |
| Monthly Subscription | $19.99 | per month |
| VIP - Year | $69.99 | per year |


### ATS Shield

[App page](https://appshunter.io/ios/app/ats-shield/id6752914245)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Smart Level & AR Ruler free?

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

### Is ATS Shield free?

ATS Shield is free to download, with no in-app purchases.

### Do Smart Level & AR Ruler or ATS Shield have ads?

Neither Smart Level & AR Ruler nor ATS Shield shows ads.

### Which is updated more often, Smart Level & AR Ruler or ATS Shield?

Smart Level & AR Ruler ships an update every 2 weeks, and ATS Shield weekly. Most recently, Smart Level & AR Ruler was updated on November 4, 2026 and ATS Shield on October 30, 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.*