Free, still pretty buggy, but it has potential.
Manual-transmission shift assistant — infers gear and optimal-shift zone from the
phone mic + accelerometer (no OBD-II dongle, no cloud, all on-device). Ships tuned
for a Toyota Wigo 1.0 E M/T; works first-drive on seeds and self-refines.
Install (Android 8+):
- Download the .apk below.
- When prompted, allow "Install unknown apps" for your browser / file manager.
- Open the .apk to install. Grant Microphone + Location when asked, mount the
phone on the dash (landscape), tap Start, and drive.
This is a debug build for friends-and-neighbours testing. Feedback welcome.