Offline-first app for real car costs

Know what it costs to drive your car.

kmcost helps you log fuel stops and maintenance in seconds and understand cost per kilometer or mile with clarity. No ads, no noise, no spreadsheets.

Built for iOS and Android. Works offline at all times.

Essential, reliable, fast

Everything you need to understand the real cost of your car, without complexity.

Fast logging< 10s
Offline-firstAlways
User-owned data100%
AdsZero

Core features

kmcost is designed for people who want financial clarity and simplicity. Fewer fields, more signal.

Simple vehicle setup

Make, model, year, fuel type, and current odometer. No long forms.

Fuel logging

Paid amount, liters or unit price, odometer, and full or partial tank.

Maintenance logging

Predefined maintenance types, cost, odometer, and optional notes.

Simple dashboard

Cost per distance, average consumption, monthly spend, and next maintenance.

Local reminders

Schedule reminders by time or distance. Clear local notifications.

Offline by default

The app works without internet. Sync is optional if you need it.

How it works

A straightforward flow designed to log expenses in under 10 seconds.

1

Add your vehicle

Enter the basics and start using the app.

2

Log fuel and maintenance

Everything stays quick, with automatic calculations.

3

See the real cost of your car

Cost per distance and clear reminders in one simple dashboard.

Pricing

The core app is free. Pro unlocks backup, sync, and export.

Free
Free

For personal use without an account.

  • 1 vehicle
  • Unlimited records
  • Simple dashboard
  • Local data on device
Pro
Subscription

Monthly or yearly, with savings on the yearly plan.

  • Cloud backup
  • Multi-device sync
  • CSV/PDF export
  • Multiple vehicles

Privacy and data

kmcost does not sell data and does not use ads. Your data stays yours and can be exported whenever you want.

Want the details? See the privacy policy and the terms of use.

Talk to us

Questions, partnerships, or support? Write to kmcost@ryzelogic.com.