Kotselog

Kotselog is your car's logbook — a private, offline-first companion that tracks everything about running your vehicle in one place. No account needed, no ads, and your data stays on your phone.

WHAT YOU CAN DO

• Fuel economy — log every fill-up and see your real km/L and running fuel costs over time.
• Expenses — track registration, insurance, parts, car wash and every peso your car costs you.
• Maintenance & service reminders — record oil changes and services, and get reminded before the next one is due (by distance or date).
• Trip logging — record your drives with GPS while the app is open: route, distance, duration and speed, saved to your mileage log.
• OBD-II diagnostics — connect a Bluetooth ELM327 scanner to read live data and trouble codes from your car.
• Documents — keep photos of your OR/CR, driver's license and insurance handy and private on your device.
• Reports — see summaries of fuel, expenses and mileage, and export them.
• Fuel prices — keep an eye on local fuel prices.

BUILT FOR THE PHILIPPINES
Designed around how cars are actually run here — OR/CR documents, local fuel logging in km/L and pesos, and everything usable offline whether you're in the city or on a road trip.

PRIVATE BY DESIGN
Kotselog is offline-first. Your logs, documents and trips are stored on your device. There are no ads and no third-party tracking or analytics. Location is used only to log the current trip while the app is open — it is never sold or shared.

FREE
The full app is free to use. An optional encrypted backup and cross-device sync may be offered later for people who want it; the core logbook stays free.

Start your car's logbook today with Kotselog.