# AR Ruler vs Bubble Level®

The clearest difference is update cadence: AR Ruler at every 3 weeks against Bubble Level®'s every 11 months. AR Ruler also leads on rating (4.6 vs 4.4) and ratings volume (977 vs 84). Bubble Level®'s advantage is iOS requirement (11.0 vs 16.0). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. AR Ruler sells 9 in-app purchases, starting at $4.99 per 7 days and Bubble Level® sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

AR Ruler holds the better App Store score, 4.6 against 4.4. That said, the two scores are not equally well evidenced: AR Ruler has 977 ratings behind it against 84, so its average is the more settled of the two. Written reviews point the same way: 36% of AR Ruler's written reviews are positive against 33% of Bubble Level®'s.

AR Ruler ships an update every 3 weeks, Bubble Level® every 11 months. The most recent releases landed on November 8, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | AR Ruler | Bubble Level® |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (977 ratings)](https://appshunter.io/ios/app/ar-ruler-digital-tape-measure/id1326773975/reviews)** | [4.4 (84 ratings)](https://appshunter.io/ios/app/bubble-level/id1538962423/reviews) |
| Number of ratings | **977** | 84 |
| Positive reviews | **35.7% of reviews** | 33.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 3 weeks** | Every 11 months |
| Monetization | Freemium | Free with in-app purchases |
| Size | 397 MB | 48 MB |
| Requires iOS | 16.0 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Grymala sp. z o.o.](https://appshunter.io/developer/1686597408) | [Tripti Kumari](https://appshunter.io/developer/1523421832) |

## What reviewers say

### AR Ruler

[App page](https://appshunter.io/ios/app/ar-ruler-digital-tape-measure/id1326773975)

This app uses your phone's camera and AR technology to measure distances, lengths, angles, areas, and volumes of real-world objects. It offers a variety of tools for quick and precise measurements, suitable for both home and professional use.

**Highlights:** AR technology for precise measurements, Measure length, height, distance, and angles, Calculate area, volume, and perimeters, Tools for various shapes (rectangles, circles, cubes), Room measurement and wall adjustments, Home screen widgets for faster access

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AR Ruler Weekly | $4.99 | per 7 days |
| AR Ruler Weekly | $12.99 | per 7 days |
| Premium | $19.99 | per 7 days |
| AR Ruler Monthly | $19.99 | per month |
| AR Ruler Monthly | $19.99 | per month |
| Special Annual Subscription | $44.99 | per year |
| Annual AR Ruler | $69.99 | per year |
| Premium | $89.99 | per year |
| Annual AR Ruler | $89.99 | per year |

**What reviewers like**

- 🔍 Accurate measurements
- 📐 Useful for home projects
- 🔍 Precise for smaller objects
- 🔍 Helpful for architects

**What reviewers complain about**

- 💰 Expensive subscription model
- 🐛 Buggy and crashes frequently
- 📢 Aggressive advertising
- 🔍 Inaccurate for larger spaces
- 📚 Poor documentation and instructions

**Reported bugs**

- Freezes on launch
- Measurement errors
- Incompatibility with newer devices

**Requested features**

- Free trial version
- One-time purchase option
- Improved accuracy for larger areas


### Bubble Level®

[App page](https://appshunter.io/ios/app/bubble-level/id1538962423)

This app provides a digital bubble level with multiple viewing options for precise measurements. It can be used for surface leveling, angle measurement, and checking flatness, offering versatile utility for various tasks.

**Highlights:** Surface level viewing, Portrait and landscape orientation, Angle and slope measurement in percentage, Carpenter's level functionality, Surface flatness check, Line level, Compass

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $3.99 | one-time |


## Frequently asked questions

### Is AR Ruler free?

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

### Is Bubble Level® free?

Bubble Level® is free to download, with in-app purchases available.

### Which has better reviews, AR Ruler or Bubble Level®?

AR Ruler is rated higher. AR Ruler averages 4.6 out of 5 from 977 ratings, while Bubble Level® averages 4.4 from 84 ratings.

### Do AR Ruler or Bubble Level® have ads?

Both AR Ruler and Bubble Level® show ads.

### Which is updated more often, AR Ruler or Bubble Level®?

AR Ruler ships an update every 3 weeks, and Bubble Level® every 11 months. Most recently, AR Ruler was updated on November 8, 2026 and Bubble Level® on November 3, 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.*