# EZ-TCU Trans Controller — EZ-TCU Transmission Controller

> Wireless iOS control for TCI EZ-TCU transmission tuning and diagnostics. (iPhone/iPad app by Performance Electronics.)

- Source: https://appshunter.io/ios/app/ez-tcu-trans-controller/id1434677792 (this page in markdown: same URL + `.md`)
- Developer: [Performance Electronics](https://appshunter.io/developer/1161515426)
- Category: Utilities
- Price: Free
- Rating: 3.90/5 from 7 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 11.0 · 11 MB
- Languages: American English
- Released: 2019-05-03
- Data updated: 2026-06-04
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/ez-tcu-trans-controller/id1434677792/reviews.md

## What is EZ?

TCI® EZ-TCU™ Transmission Controller users can now tune their transmission via iOS devices.   A wireless module enables Bluetooth communication between the EZ-TCU™ and an iOS app, enabling the user to control shift points, firmness and aggressiveness. Data logging and self-diagnostics make it possible to optimize tuning intuitively – without the need for software, a hand-held unit or cabling. There is also an anti-theft feature that allows for remote disabling of the vehicle.

Features & Benefits:

·       Easy transmission control from your phone or tablet; no laptop or software needed
·       Maximum electronic control over the shift points, shift firmness and shift aggressiveness
·       Data logging and self-diagnostics for optimal tuning
·       Anti-theft feature for disabling vehicle through app
·       Compatible with 4L60E, 4L65E, 4L70E, 4L80E, 4L85E and TCI® 4x & 6x transmissions

## Key features

- Wireless transmission control via Bluetooth
- Adjust shift points, firmness, and aggressiveness
- Data logging and self-diagnostics
- Remote anti-theft vehicle disabling
- No laptop or software required

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/ez-tcu-trans-controller/id1434677792/reviews.md

### 3/5 — Preset

*2025-04-12*

This app should have presets. Street driving versus track driving. This will allow the user to change transmission settings on the fly.

## Frequently asked questions about EZ

### What transmissions are compatible with EZ-TCU Trans Controller?

EZ-TCU Trans Controller is compatible with 4L60E, 4L65E, 4L70E, 4L80E, 4L85E, and TCI® 4x & 6x transmissions.

### Does EZ-TCU Trans Controller require a laptop?

No, EZ-TCU Trans Controller allows for easy transmission control directly from your phone or tablet, eliminating the need for a laptop or software.

### What kind of tuning can I do with EZ-TCU Trans Controller?

You can achieve maximum electronic control over your transmission's shift points, shift firmness, and shift aggressiveness using the app.

### Does EZ-TCU Trans Controller have an anti-theft feature?

Yes, EZ-TCU Trans Controller includes an anti-theft feature that allows for remote disabling of the vehicle through the app.

### How often is EZ-TCU Trans Controller updated?

The latest version, 1.00.13, was released on May 30, 2019. Updates are provided by the developer, Performance Electronics.

### What devices support EZ-TCU Trans Controller?

EZ-TCU Trans Controller is supported on iPhone and iPod devices.

### What is the age rating for EZ-TCU Trans Controller?

EZ-TCU Trans Controller has an age rating of 4+.

### Does EZ-TCU Trans Controller have ads?

No, EZ-TCU Trans Controller does not contain advertisements.

## Version history (last 2 releases)

### 1.00.13 — 2019-05-30

- Fixed issue where error data from TCU was being interpreted incorrectly. 
- Added ability to reset errors from error pop-up.

### 1.00.12 — 2019-05-02

No release notes.

## Apps similar to EZ

| App | Rating | Price | Category |
| --- | --- | --- | --- |
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| [Holley Terminator X](https://appshunter.io/ios/app/holley-terminator-x/id6736920316) | 4.4 (5) | Free | Utilities |
| [Progression Ignition Tuner v2](https://appshunter.io/ios/app/progression-ignition-tuner-v2/id1551628429) | 4.9 (14) | Free | Utilities |
| [Dakota Digital](https://appshunter.io/ios/app/dakota-digital/id1444935257) | 3.2 (47) | Free | Utilities |
| [E-Tuner 4](https://appshunter.io/ios/app/e-tuner-4/id1579096205) | 4.0 (22) | Free | Utilities |
| [TCI TUNER](https://appshunter.io/ios/app/tci-tuner/id6499452376) | — | Free | Utilities |

## More apps by Performance Electronics

- [Ridetech RidePro X-HP](https://appshunter.io/ios/app/ridetech-ridepro-x-hp/id1161515427)
- [PE Wideband](https://appshunter.io/ios/app/pe-wideband/id1351406709)
- [FAST Wireless Air Fuel Meter](https://appshunter.io/ios/app/fast-wireless-air-fuel-meter/id1478299555)
- [Ridetech - RidePro E5](https://appshunter.io/ios/app/ridetech-ridepro-e5/id1483867870)
- [Nostrum E85 Ethanol Module App](https://appshunter.io/ios/app/nostrum-e85-ethanol-module-app/id1503385365)

All apps by Performance Electronics: https://appshunter.io/developer/1161515426

## Related topics

[my tcu](https://appshunter.io/ios/topics/my-tcu)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-04.*