The EFILive alternative
without the $1,000 kit.
EFILive is a professional tool with a deep feature set and a price to match. For a Gen III LS you own, TuneBench gets you from stock to tuned for a fraction of the cost.
The short answer
A FlashScan V3 with the tuning option runs about $1,025 before you add a laptop. TuneBench is a free app, a ~$140 OBDLink MX+ and $50 to license the vehicle. For 1999 to 2007 GM Gen III LS with a P01 or P59 PCM, you get read, edit, log, auto-correct and write.
EFILive covers far more: Gen IV and Gen V GM, Duramax and Cummins diesels, transmission controllers, custom operating systems and stand-alone flashing from the FlashScan itself. For a diesel shop or a pro GM tuner, it is excellent.
Side by side
| TuneBench | EFILive FlashScan V3 | |
|---|---|---|
| Up-front cost | $0 app + ~$140 adapter | ~$1,025 (V3 + tuning option) |
| Gen III LS license | $50 | VIN license (2 included with tuning option) |
| Laptop required | No, runs on your phone | Yes, Windows |
| Runs on | iPhone, iPad, Android, Mac, Windows, Linux | Windows (+ FlashScan stand-alone) |
| Read & write P01 / P59 | Yes | Yes |
| Logging + histograms | Yes | Yes |
| Auto-correct from log | One tap | Via maps and calculated PIDs |
| Open definition format (XDF) | Yes | Proprietary |
| Gen IV / V GM, Duramax, Cummins | Gen IV in development | Yes |
| Custom operating systems | No | Yes |
EFILive prices are public retail listings, October 2026.
Who should pick which
Pick EFILive if you tune diesels, late-model GM, transmissions or customers' vehicles for a living.
Pick TuneBench if you own a Gen III LS truck or car, want to tune it yourself, and would rather spend the difference on a cam. Reading, editing and logging are free, so you can try the whole workflow, including the built-in demo vehicle, before spending a cent.
Tune it for the price of dinner.
Free to read, edit and log. License a Gen III LS for $50 when you're ready to write.