# Bubble Level® vs Gyraline

The clearest difference is rating: Bubble Level® at 4.4 against Gyraline's 3.8. Bubble Level® also leads on monetization model (free with in-app purchases vs paid) and iOS requirement (11.0 vs 15.0). Gyraline's advantage is ads (none vs shown) and update cadence (fortnightly vs every 11 months). On price, ratings volume, in-app purchases and device support there is nothing between them.

Both are free to download. Bubble Level® sells 1 one-off in-app purchase and Gyraline sells 9 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Bubble Level® holds the better App Store score, 4.4 against 3.8. Both are backed by a comparable volume of ratings — 84 and 99 respectively. Written reviews complicate that: 33% of Bubble Level®'s written reviews are positive against 61% of Gyraline's, so the app with the better star average is not the one people write more warmly about.

Bubble Level® ships an update every 11 months, Gyraline fortnightly. The most recent releases landed on October 16, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Bubble Level® | Gyraline |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (84 ratings)](https://appshunter.io/ios/app/bubble-level/id1538962423/reviews)** | [3.8 (99 ratings)](https://appshunter.io/ios/app/gyraline/id6450752768/reviews) |
| Number of ratings | 84 | **99** |
| Positive reviews | 33.3% of reviews | **60.7% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 11 months | **Fortnightly** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 48 MB | 63 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tripti Kumari](https://appshunter.io/developer/1523421832) | [Mechly LLC](https://appshunter.io/developer/1694760852) |

## What reviewers say

### 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 |


### Gyraline

[App page](https://appshunter.io/ios/app/gyraline/id6450752768)

This app transforms your smartphone and a specialized toolkit into a professional-grade wheel alignment system. It enables fast, accurate 4-wheel alignments for enthusiasts and DIYers in their own garage, offering precise measurements for various alignment angles.

**Highlights:** Precision 4-wheel alignment, Measure total toe (front & rear), Thrust line comparison, Camber measurement and adjustment, Caster sweep, Ackermann visualization

**Features:** Vision Pro support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gyraline DIY One Week | $7.99 | per 7 days |
| Gyraline DIY One Month | $9.99 | per month |
| Quick Check Single Device | $99.99 | per month |
| Trial | Free | one-time |
| Single Token Purchase | $0.99 | one-time |
| Five Token Purchase | $3.99 | one-time |
| Weekend Pass | $5.99 | one-time |
| One Time Subscription | $69.99 | one-time |
| Gyraline Pro | $399.99 | one-time |

**What reviewers like**

- 👍 Great for DIY alignments
- 💰 Saves money on professional alignments
- 🚀 Quick and easy adjustments
- 🎯 Surprisingly accurate results
- 💡 Innovative tool for automotive enthusiasts

**What reviewers complain about**

- 🐛 Inconsistent measurements
- 🤔 Steep learning curve
- ⏳ Time-consuming process
- 🤷‍♂️ Confusing interface/instructions
- 🐛 App crashes/bugs

**Reported bugs**

- Inconsistent measurements
- App crashes
- Sensor axis reversed (G2)
- Accuracy defaults revert to 0.10°
- Camber tool unreliable

**Requested features**

- Add caster to features
- Live measurements via Bluetooth sensors
- Separate toe-only section for quicker adjustments
- Self-calibration setting
- Vehicle spec database for G1 owners


## Frequently asked questions

### Is Bubble Level® free?

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

### Is Gyraline free?

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

### Which has better reviews, Bubble Level® or Gyraline?

Bubble Level® is rated higher. Bubble Level® averages 4.4 out of 5 from 84 ratings, while Gyraline averages 3.8 from 99 ratings.

### Do Bubble Level® or Gyraline have ads?

Bubble Level® shows ads; Gyraline does not.

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

Bubble Level® ships an update every 11 months, and Gyraline fortnightly. Most recently, Bubble Level® was updated on October 16, 2026 and Gyraline on October 15, 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.*