# TuneBoss ECU vs I

The clearest difference is update cadence: TuneBoss ECU at fortnightly against I's every 2 months. I's advantage is device support (4 vs 2). On price, ads, in-app purchases and iOS requirement there is nothing between them.

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

TuneBoss ECU ships an update fortnightly, I every 2 months. The most recent releases landed on November 3, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | TuneBoss ECU | I |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (2 ratings)](https://appshunter.io/ios/app/tuneboss-ecu/id1593810669/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 40.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | Free | — |
| Size | 66 MB | 134 MB |
| Requires iOS | **15.0** | 15.5 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [FSR Technology](https://appshunter.io/developer/1593810671) | [FELIPE AGUILAR](https://appshunter.io/developer/1053219389) |

## What reviewers say

### TuneBoss ECU

[App page](https://appshunter.io/ios/app/tuneboss-ecu/id1593810669)

This application is for advanced users and requires a specific TuneBoss ECU unit (sold separately). It is designed for use with authorized tuning centers and comes with a disclaimer for use at your own risk.

**Highlights:** Requires TuneBoss ECU unit, For advanced users, Support for authorized tuning centers, Use at own risk disclaimer

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

**In-app purchases:** none


### I

[App page](https://appshunter.io/ios/app/i-handler-app/id6740422816)

**Features:** macOS Compatibility, Apple Wallet, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is TuneBoss ECU free?

TuneBoss ECU is free to download, with no in-app purchases.

### Is I free?

I is free to download, with no in-app purchases.

### Do TuneBoss ECU or I have ads?

Neither TuneBoss ECU nor I shows ads.

### Which is updated more often, TuneBoss ECU or I?

TuneBoss ECU ships an update fortnightly, and I every 2 months. Most recently, TuneBoss ECU was updated on November 3, 2026 and I on October 28, 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.*