# E vs Garrett Motion G

The clearest difference is rating: Garrett Motion G at 5.0 against E's 3.9. E's advantage is ratings volume (24 vs 1). On price, update cadence, ads and in-app purchases 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 3.9. That said, the two scores are not equally well evidenced: E has 24 ratings behind it against 1, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on October 24, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | E | Garrett Motion G |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (24 ratings)](https://appshunter.io/ios/app/e-tuner-4/id1579096205/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/garrett-motion-g-smart-module/id6457547124/reviews)** |
| Number of ratings | **24** | 1 |
| Positive reviews | 46.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | Every 4 months |
| Monetization | Free | Free |
| Size | 51 MB | 6 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Edelbrock Corp](https://appshunter.io/developer/1579096297) | [Performance Electronics](https://appshunter.io/developer/1161515426) |

## What reviewers say

### E

[App page](https://appshunter.io/ios/app/e-tuner-4/id1579096205)

This app connects wirelessly to an EFI system, allowing users to monitor engine data and adjust various settings like air-fuel ratios and ignition timing. It offers a setup wizard for initial calibration and advanced tuning options for performance optimization.

**Highlights:** Bluetooth ECU communication, Live tuning of ECU settings, Real-time engine and sensor data monitoring, Setup Wizard for base calibration, Advanced tuning functions, Diagnostic troubleshooting page, Vivid gauge displays

**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 E free?

E 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, E or Garrett Motion G?

Garrett Motion G is rated higher. E averages 3.9 out of 5 from 24 ratings, while Garrett Motion G averages 5.0 from 1 ratings.

### Do E or Garrett Motion G have ads?

Neither E nor Garrett Motion G shows ads.

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

E ships an update every 4 months, and Garrett Motion G every 4 months. Most recently, E was updated on October 24, 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.*