# Trac-Pac Performance Optimizer — Companion app

> Companion app (iPhone/iPad app by FAST LANE INNOVATIONS, LLC USA.)

- Source: https://appshunter.io/ios/app/trac/id1002414818 (this page in markdown: same URL + `.md`)
- Developer: [FAST LANE INNOVATIONS, LLC USA](https://appshunter.io/developer/1002414817)
- Category: Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 12.0 · 113 MB
- Languages: English
- Released: 2015-06-16
- Data updated: 2025-06-14
- User reviews in markdown: https://appshunter.io/ios/app/trac/id1002414818/reviews.md

## What is Trac?

Control your Trac-Pac(TM) Shift Light from Fast Lane Innovations with this companion app! 

This device acts as a progressive shift light and RPM data logger to help you dial in consistency and diagnose issues like wheelspin, valve float, and determine your actual shift points.

Built-in analyzer function scans your log, determines when gear changes occurred, and calculates stats for each gear such as shift RPM, engine acceleration throughout the gear, shift time, time in gear, and more. This makes it easy to track performance improvements.

Set the performance optimizer to indicate your RPM and shift points that you set with red, yellow, and green progressive indicator lights. 

Play back logs real-time so you can get a better understanding of your driving and the vehicle's behavior.

If you connect to your instrument lights, the brightness of the nameplate and gauges will dim when the headlights are turned on, and you can set how much dimmer the lights should be. The lights will dim further if you decrease the brightness of your instrument cluster as well!

WARNING: Do not watch your mobile device or the lights while you are driving! You can log your data while your drive and view it later when you're not moving. Distracted driving can result in serous injury or death to yourself and others.


## Version history (last 5 releases)

### 2.37 — 2024-07-02

Minor updates and bug fixes

### 2.36 — 2023-12-22

Minor bug fixes

### 2.34 — 2023-04-25

- Improved RPM selector behavior

### 2.33 — 2022-07-05

Minor updates

### 2.28 — 2020-09-30

- Enables resetting the shift light settings to default on firmware version 2.15+
- Enables forgetting the last connected OBD2 module to connect to a different one on firmware version 2.15+

## Apps similar to Trac

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Auto Generator Control](https://appshunter.io/ios/app/auto-generator-control/id1659310917) | 3.7 (3) | Free | Utilities |
| [Progression Ignition Tuner v2](https://appshunter.io/ios/app/progression-ignition-tuner-v2/id1551628429) | 4.9 (14) | Free | Utilities |
| [Fullstand Next Pro Tune](https://appshunter.io/ios/app/fullstand-next-pro-tune/id1536711341) | 2.8 (11) | $9.99 | Utilities |
| [Thin Blue Line Reporting](https://appshunter.io/ios/app/thin-blue-line-reporting/id933016445) | 5.0 (4) | Free | Utilities |
| [D-Shift](https://appshunter.io/ios/app/d/id6466145102) | 5.0 (4) | Free | Utilities |
| [AP200H_BMW](https://appshunter.io/ios/app/ap200h-bmw/id1517335253) | — | Free | Utilities |

## More apps by FAST LANE INNOVATIONS, LLC USA

- [GuardianDesigns Shift Light](https://appshunter.io/ios/app/guardiandesigns-shift-light/id1510274136)
- [Auto-Rel OBD2 Relay](https://appshunter.io/ios/app/auto/id1532842326)

All apps by FAST LANE INNOVATIONS, LLC USA: https://appshunter.io/developer/1002414817

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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 2025-06-14.*