# Angle Gradient Inclinometer vs Gyraline

The clearest difference is rating: Angle Gradient Inclinometer at 4.4 against Gyraline's 3.8. Angle Gradient Inclinometer also leads on in-app purchases (none vs 9) and iOS requirement (13 vs 15.0). Gyraline's advantage is ads (none vs shown) and update cadence (fortnightly vs every 8 months). On price, ratings volume and device support there is nothing between them.

Both are free to download. Gyraline sells 9 in-app purchases, starting at $7.99 per 7 days. Angle Gradient Inclinometer asks for nothing beyond the download.

Angle Gradient Inclinometer holds the better App Store score, 4.4 against 3.8. Both are backed by a comparable volume of ratings — 295 and 99 respectively. Written reviews complicate that: 51% of Angle Gradient Inclinometer'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.

Angle Gradient Inclinometer ships an update every 8 months, Gyraline fortnightly. The most recent releases landed on October 14, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Angle Gradient Inclinometer | Gyraline |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (295 ratings)](https://appshunter.io/ios/app/angle-gradient-inclinometer/id530077112/reviews)** | [3.8 (99 ratings)](https://appshunter.io/ios/app/gyraline/id6450752768/reviews) |
| Number of ratings | **295** | 99 |
| Positive reviews | 51.1% of reviews | **60.7% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 8 months | **Fortnightly** |
| Monetization | **Ad-supported** | Paid |
| Size | 11 MB | 63 MB |
| Requires iOS | **13** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SHIGETO TAKAGI](https://appshunter.io/developer/519611619) | [Mechly LLC](https://appshunter.io/developer/1694760852) |

## What reviewers say

### Angle Gradient Inclinometer

[App page](https://appshunter.io/ios/app/angle-gradient-inclinometer/id530077112)

Easily measure tilt angles with this free protractor app. It displays inclination from 0 to 359 degrees, along with gradient percentages and angles summing to 180 or 360 degrees. Switch to theodolite mode to set a specified angle to zero.

**Highlights:** Measure tilt angles 0-359 degrees, Display gradient percentage, Show sum angles (180/360), Theodolite mode, Set specified angle to zero

**Features:** Vision Pro support

**In-app purchases:** none


### 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 Angle Gradient Inclinometer free?

Angle Gradient Inclinometer is free to download, with no in-app purchases.

### Is Gyraline free?

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

### Which has better reviews, Angle Gradient Inclinometer or Gyraline?

Angle Gradient Inclinometer is rated higher. Angle Gradient Inclinometer averages 4.4 out of 5 from 295 ratings, while Gyraline averages 3.8 from 99 ratings.

### Do Angle Gradient Inclinometer or Gyraline have ads?

Angle Gradient Inclinometer shows ads; Gyraline does not.

### Which is updated more often, Angle Gradient Inclinometer or Gyraline?

Angle Gradient Inclinometer ships an update every 8 months, and Gyraline fortnightly. Most recently, Angle Gradient Inclinometer was updated on October 14, 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.*