VoltGarage: EV Cost Tracker

VoltGarage is a charging and running cost log for your electric car. Log each charge in a few seconds and see what every mile or kilometer costs you, split between home and public charging.

Your battery, layer by layer
Each charge adds a colored layer, based on where it happened: home, work, public AC or public DC. As you drive, the oldest energy is used first. The Battery tab shows how many kWh are in there right now and what they cost you. You can show the battery flat, upright or as a car.

Logging a charge takes seconds
• Drag to fill the battery, or type the start and end percentages. kWh and the total are worked out for you.
• Average home electricity and fuel prices are pre-filled. Change them to your own rates.
• Add a screenshot from your charging app, or a photo of the receipt, then tap Fill from a screenshot. VoltGarage tries to read the kWh and the amount. Check it and save. Images stay on your phone.
• Type the odometer reading and you get your cost per mile or km and your consumption, from the gap between two charges.
• On a time-of-use plan at home? Enter your day, peak and night rates. The app shows how much less you would have paid by charging at night.

Track a charge from the app
Start tracking when you plug in. The notification shows the time left and the estimated finish, then reminds you to save the charge when it's done. If you pick your car's Bluetooth, the app asks "Did you plug in?" when the car's Bluetooth disconnects. The Bluetooth name and address stay on your phone.

Forecast
The home screen shows a forecast: when your next charge is due, in days or at an odometer reading, plus your average use. After a few charges, it learns your habits.

Compared with a gas car
Enter your old car's fuel use in liters per 100 km and the fuel price. Each month you see how much less you paid than you would have in a gas car.

Everything else you spend on the car
Add maintenance, tires, insurance, taxes, inspections, parking and tolls under Expenses. The Report tab has a monthly expense chart, a breakdown by type and your total cost per mile or km.
Set reminders for an inspection or insurance renewal by date or by mileage. You get a notification a week before and on the day.
The charge reminder asks once, around your usual charging time, whether you plugged in. It needs no location.

Trip cost and station map
Before a long drive, use the trip cost tool on the Report tab. It shows the kWh needed, a rough cost and charging stops.
The Map tab shows nearby AC and DC charging stations, with prices reported by other drivers. You can report busy stations or broken chargers. Stations worldwide come from OpenStreetMap and official lists.

Small things that help
• Home screen widget: your running cost this month at a glance.
• Share this month: your monthly summary as one card.
• Many electric car models are built in. If yours isn't listed, type it in.
• Import a CSV file from another tracking app.
• Export your data to CSV at any time. That's always free.
• Make a backup file for a new phone, or use a recovery code to get your entries back.
• Miles or km; GBP, EUR, USD, TRY and more; light and dark theme; English and Turkish.

Free version
The free version covers one car and shows the last 3 months of entries. Older entries are kept. The free version shows ads: when the app opens and after you save a charge, from time to time. You won't see ads in the first 10 minutes.

Your data
No account needed. Entries stay on your phone and are backed up over an encrypted connection to our server (Cloudflare, EU region). We don't store your name, phone number, contacts or GPS location. To find nearby stations, your location is sent rounded to about 1 km, not stored. Sharing your prices with the community and sending anonymous usage data are optional, and you can turn them off in Settings. Google's ad service may use your advertising ID to show ads. You can delete your data at any time.

Questions or ideas: contact@owl-app.com