WattLog

WattLog turns your EV's data screen into a structured log — just photograph the display and let the app capture the numbers.

Each session records starting battery, distance driven, average efficiency, remaining range, drive time, average speed, ambient temperature, and charging location. Add cost per kWh for spend tracking over time and compare to gasoline powered vehicles in your region.

Features
• OCR-powered data entry — point your camera at the charge screen, review, and save
• Charge history with per-vehicle filtering and swipe-to-delete
• Efficiency and range trends over time
• Drive summary analyzes your costs versus gasoline in your region
• Supports multiple vehicles with a default selector
• Home and away charging distinction
• Imperial and metric unit support
• Settings sync across devices via your Google account
• Dark, light, and system theme

Designed for
EV owners who want a clean record of their driving and charging habits without manual entry or spreadsheets. Current release is trained on the Nissan Ariya.

Sign in with Google, email, or skip the sign in to get started immediately. Your data is downloadable.

Coming soon, share logging of the same vehicles with others in your household!