# 123\Tune+ vs Garrett Motion G

The clearest difference is rating: Garrett Motion G at 5.0 against 123\Tune+'s 4.5. 123\Tune+'s advantage is update cadence (every 3 weeks vs every 4 months) and ratings volume (242 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Garrett Motion G holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: 123\Tune+ has 242 ratings behind it against 1, so its average is the more settled of the two.

123\Tune+ ships an update every 3 weeks, Garrett Motion G every 4 months. The most recent releases landed on October 16, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | 123\Tune+ | Garrett Motion G |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (242 ratings)](https://appshunter.io/ios/app/123tune-plus/id890882601/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/garrett-motion-g-smart-module/id6457547124/reviews)** |
| Number of ratings | **242** | 1 |
| Positive reviews | 57.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Monetization | Free | Free |
| Size | 209 MB | 6 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Albertronic B.V.](https://appshunter.io/developer/890882604) | [Performance Electronics](https://appshunter.io/developer/1161515426) |

## What reviewers say

### 123\Tune+

[App page](https://appshunter.io/ios/app/123tune-plus/id890882601)

Control your classic car's ignition wirelessly via Bluetooth. Adjust advance and vacuum curves, monitor real-time engine data, and utilize features like a PIN-code immobilizer and rev limiter. Compatible with a wide range of classic vehicles.

**Highlights:** Wireless ignition curve adjustment, Real-time engine data monitoring, PIN-code immobilizer, Soft rev limiter, Tune mode for timing tests, MAP/boost sensor support

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

**In-app purchases:** none


### Garrett Motion G

[App page](https://appshunter.io/ios/app/garrett-motion-g-smart-module/id6457547124)

This free tool connects to a Bluetooth module to display turbo speed and boost pressure data on your mobile device. Optimize turbocharger durability and performance by monitoring operating RPMs and calculating turbo efficiency.

**Highlights:** Display turbo speed and boost pressure, Optimize turbocharger durability and performance, Calculate turbo efficiency, Gauge and graph data formats, 120-second live data plot, Easy installation and setup

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 123\Tune+ free?

123\Tune+ is free to download, with no in-app purchases.

### Is Garrett Motion G free?

Garrett Motion G is free to download, with no in-app purchases.

### Which has better reviews, 123\Tune+ or Garrett Motion G?

Garrett Motion G is rated higher. 123\Tune+ averages 4.5 out of 5 from 242 ratings, while Garrett Motion G averages 5.0 from 1 ratings.

### Do 123\Tune+ or Garrett Motion G have ads?

Neither 123\Tune+ nor Garrett Motion G shows ads.

### Which is updated more often, 123\Tune+ or Garrett Motion G?

123\Tune+ ships an update every 3 weeks, and Garrett Motion G every 4 months. Most recently, 123\Tune+ was updated on October 16, 2026 and Garrett Motion G on September 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*