# MultiSync vs Gyraline

The clearest difference is update cadence: Gyraline at fortnightly against MultiSync's every 6 weeks. Gyraline also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. MultiSync sells 4 in-app purchases, starting at $2.99 per month 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.

MultiSync ships an update every 6 weeks, Gyraline fortnightly. The most recent releases landed on August 17, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | MultiSync | Gyraline |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.8 (99 ratings)](https://appshunter.io/ios/app/gyraline/id6450752768/reviews)** |
| Number of ratings | — | **99** |
| Positive reviews | — | 61.4% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Fortnightly** |
| Monetization | — | Paid |
| Size | 69 MB | 63 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Michelin](https://appshunter.io/developer/994145743) | [Mechly LLC](https://appshunter.io/developer/1694760852) |

## What reviewers say

### MultiSync

[App page](https://appshunter.io/ios/app/multisync/id1631133422)

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pressure Monitoring - Monthly | $2.99 | per month |
| My Tire Engineer - Monthly | $3.99 | per month |
| Pressure Monitoring - Yearly | $29.99 | per year |
| My Tire Engineer - Yearly | $44.99 | per year |


### 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 MultiSync free?

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

### Is Gyraline free?

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

### Do MultiSync or Gyraline have ads?

Neither MultiSync nor Gyraline shows ads.

### Which is updated more often, MultiSync or Gyraline?

MultiSync ships an update every 6 weeks, and Gyraline fortnightly. Most recently, MultiSync was updated on August 17, 2026 and Gyraline on September 18, 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.*