Aim your camera at the dashboard. WattLog reads every number, logs the charge, and charts your efficiency — no spreadsheets, no manual entry. All your EVs in one private history.
The more you log, the better WattLog reads your car's dashboard. Every shared capture helps it learn the next driver's, too. Sharing is anonymous, optional, and off by default.
A photo of your dashboard — any EV, not just one model.
WattLog lifts every value off the photo.
Clean numbers — and a sharper read next time.
No forms to fill. Point at your trip screen and WattLog does the rest — capture, log, and chart every charge.
Aim at your trip computer. The OCR reads mileage, battery %, range, efficiency and more — and tells you when every value is captured.
Confirm in a tap. WattLog files the session with cost and a clean drive summary — including how much you saved versus a gas car.
See efficiency, cost per mile and plug-in habits over time — so you learn what actually moves your range and your bill.
Add your electricity rate and WattLog compares each session to the gasoline equivalent in your region — so the savings aren't a guess, they're logged.
Text recognition runs on your device. Your charge log is yours — no account is required to start tracking, and your driving data isn't sold.
Track multiple vehicles in a single timeline. Switch cars, keep every charge, and compare efficiency across your whole garage.
Efficiency, cost per mile and plug-in state of charge — charted so you can see what helps your range and what hurts it.




Recognition profiles tuned for the Nissan Ariya, Nissan Leaf, Hyundai Ioniq 5, Kia EV6, and VW ID.4 — and the OCR reads any EV's trip computer out of the box. Every shared capture sharpens the next model we tune.
Free on Google Play. Start logging your next charge in seconds.