WattMate LogoWattMate

EV Charging Tracker for Costs and Battery Insight.

Keep every EV charging session in a clear logbook. Track kWh, SOC, charging costs, real-world efficiency, and battery insight without spreadsheets.

Download on the App StoreGet it on Google Play
1,289+
Electric Vehicles
66
Manufacturers
21
Currencies
WattMate EV charging history and session log

A Clear Charging Logbook Without Spreadsheets

WattMate turns charging sessions into useful history, cost clarity, and long-term EV insight.

EV Charging Logbook

Keep a clear charging history with kWh, duration, cost, SOC, and AC/DC charger type.

Charging Cost Tracker

Track total spend, average price per kWh, monthly costs, and cost per 100 km.

Real-World Efficiency

Compare trip computer consumption with real-world results from your charging and driving data.

Battery Insight

Review estimated usable capacity, range, and battery degradation trends based on recorded sessions.

CSV Import and Export

Move charging history in and out of WattMate with spreadsheet-friendly CSV files.

Multi-Vehicle Tracking

Track more than one EV with separate charging history, units, currency, and statistics.

Charging History, Costs, and Battery Insight

Review sessions, understand spending, and keep battery-related stats in one practical EV logbook.

WattMate EV charging history and session log
WattMate EV charging cost and battery statistics
WattMate charging session details with cost and battery insight
WattMate CSV export for charging sessions
WattMate Premium and multi-vehicle settings
WattMate add charging session form
WattMate monthly charging statistics filter
WattMate charging cost currency converter
WattMate add vehicle from EV catalog
WattMate sign-in screen

Swipe to see more screenshots

Start Free. Upgrade When Your Logbook Grows.

Track your first vehicle for free. Premium unlocks unlimited vehicles, unlimited sessions, and CSV data control.

Free

Free

Get started with basic tracking

  • 1 Vehicle
  • 15 Charging Sessions
  • Core Charging Logbook
  • Cost and Battery Insights
  • Cloud Sync
  • CSV Export/Import
  • Priority Support
Download Free
Most Popular

Premium

€0.99/month

or €8.49/year

Prices are shown in EUR. Final pricing may vary by region and store.

  • Unlimited Vehicles
  • Unlimited Sessions
  • Full Charging History
  • Cloud Sync
  • CSV Export/Import
  • Priority Support
Get Premium

Frequently Asked Questions

Everything you need to know about WattMate.

WattMate is an EV charging tracker app that keeps your charging history, charging costs, battery insight, and real-world efficiency in one clear logbook.
Simply tap the + button, enter your odometer reading, SOC levels, energy charged, and cost. WattMate calculates efficiency, charging loss, and cost per kWh automatically.
Charging loss is the energy lost during charging due to heat and conversion inefficiencies. Typically 10-20% for AC and 5-15% for DC. WattMate helps you track this to understand your true energy costs.
WattMate supports 1,289+ EVs from 66 manufacturers with auto-filled battery and power specs. You can also add a custom vehicle.
Yes. Your data is stored securely with Firebase, synced across devices, and you can export it anytime as CSV. We never share your personal data.
Free includes 1 vehicle and 15 charging sessions. Premium unlocks unlimited vehicles, unlimited sessions, CSV import/export, and priority support. Prices are shown in the app store and may vary by region.
Yes. WattMate is available on the App Store for iOS and Google Play for Android.

Start Your EV Charging Logbook

Download WattMate to track charging history, charging costs, real-world efficiency, and battery insight in one place.

Download on the App StoreGet it on Google Play

Free to download. No credit card required.