TuneBench: ECU Tuning
Read, log & flash GM LS tunes
About
Edit engine control unit (ECU) calibration files and datalogs on your mobile device. Analyze logs, make precise adjustments to tables and curves, and export your tuned files. Offers a demo mode for trying out the workflow.
What's New in TuneBench
2.0.4
November 13, 2026
A cleaner, classic look throughout the app, built for phones and tablets. New theme setting: Light, Dark, or follow your device. Find it under Credits > Settings. Connection and reliability fixes for Bluetooth adapters, plus many small improvements.
MoreSubscriptions & In-App Purchases
$24.99
1 Vehicle Credit
Licenses one vehicle for writing tunes.
Developer apps
FAQ
Does TuneBench have ads?
Yes, TuneBench contains advertisements. Users can watch a short video to unlock additional daily exports. The app offers an in-app purchase to remove all ads and videos.
What is the price of TuneBench?
TuneBench is free to download and use. One export per day is free, with options to watch ads for more. A one-time purchase of $4.99 removes all ads and videos.
What devices does TuneBench support?
TuneBench is available for iPhone, iPad, and iPod. It requires iOS 17 or later and is optimized for iPhone.
How often is TuneBench updated?
TuneBench was last updated on October 21, 2026, with version 1.0. Future updates will likely continue to refine features and add support.
What is the age rating for TuneBench?
TuneBench has an age rating of 17+, indicating it is intended for mature users due to the nature of its content and functionality.
Can I try TuneBench before buying?
Yes, TuneBench includes a built-in demo tune and demo log. This allows users to experience the entire workflow without needing to import their own files.
Does TuneBench connect to my vehicle?
No, TuneBench edits files on your device and does not connect to or write to your vehicle. It is intended for off-road and competition use only.
What user sentiment is reported for TuneBench?
Based on the available data, TuneBench has a rating of 3.0 stars from 1 rating. This suggests a mixed or limited user reception at this time.
