# Comp 2.0 vs Garrett Motion G

The clearest difference is rating: Garrett Motion G at 5.0 against Comp 2.0's 3.8. Garrett Motion G also leads on update cadence (every 4 months vs every 11 months). Comp 2.0's advantage is ratings volume (6 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 3.8. That said, the two scores are not equally well evidenced: Comp 2.0 has 6 ratings behind it against 1, so its average is the more settled of the two.

Comp 2.0 ships an update every 11 months, Garrett Motion G every 4 months. The most recent releases landed on October 12, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Comp 2.0 | Garrett Motion G |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (6 ratings)](https://appshunter.io/ios/app/comp-20/id6450721506/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/garrett-motion-g-smart-module/id6457547124/reviews)** |
| Number of ratings | **6** | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 4 months** |
| Monetization | Free | Free |
| Size | 139 MB | 6 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Holley Performance Products](https://appshunter.io/developer/1175069390) | [Performance Electronics](https://appshunter.io/developer/1161515426) |

## What reviewers say

### Comp 2.0

[App page](https://appshunter.io/ios/app/comp-20/id6450721506)

Enhance your 1998.5-2002 24V Cummins diesel engine's performance with on-the-fly adjustments. Fine-tune fueling, accelerator pedal response, and timing for significant power gains.

**Highlights:** On-the-fly adjustability via Bluetooth, Fine-tune low boost fueling, Adjust fuel delivery based on pedal position, Optimize timing for power curves, Gains of 40-150 HP and 150-380 TQ, Supports aftermarket injectors and turbos

**Features:** 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 Comp 2.0 free?

Comp 2.0 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, Comp 2.0 or Garrett Motion G?

Garrett Motion G is rated higher. Comp 2.0 averages 3.8 out of 5 from 6 ratings, while Garrett Motion G averages 5.0 from 1 ratings.

### Do Comp 2.0 or Garrett Motion G have ads?

Neither Comp 2.0 nor Garrett Motion G shows ads.

### Which is updated more often, Comp 2.0 or Garrett Motion G?

Comp 2.0 ships an update every 11 months, and Garrett Motion G every 4 months. Most recently, Comp 2.0 was updated on October 12, 2026 and Garrett Motion G on September 24, 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.*