WattaCar: Charging Assistant
Estimate charging time & cost
Only for iPhone
Free · In‑App Purchases · Designed for iPhone
iPhone
Do you know how much your home charging costs and how long it takes to charge to 80%? With WattaCar, estimate time AND cost in a flash! Get notified when it's ready.
WattaCar: Your EV Charging Assistant
Estimate your electric vehicle's charging time and cost at a glance.
Welcome to WattaCar, the ultimate app for estimating the charging time and cost of your electric vehicle, wherever you are: at home, at work, or on the go. Simply indicate your desired charge level, and WattaCar takes care of the rest:
Precise estimation of charging time and cost.
Smart notifications when your battery is ready.
Optimization of your battery's lifespan by keeping the charge between 20% and 80%.
With WattaCar, you know exactly how much time is left and how much it will cost, even before plugging in your vehicle. Avoid unexpected fees with smart alerts and preserve your battery.
Main Features:
Vehicle Selection: Choose your model from a comprehensive list including Tesla, BYD, Nissan Leaf, BMW i3, Renault Zoé, Hyundai Kona Electric, Kia e-Niro, Volkswagen ID.4, Ford Mustang Mach-E, Chevrolet Bolt EV, Audi e-tron, Jaguar I-PACE, Porsche Taycan, Mercedes-Benz EQ, Rivian, Lucid Motors, and many more.
Charge Levels: Indicate your current and desired charge levels to get a precise estimate of time and cost.
Notifications: Get notified when your battery reaches the desired level.
Remaining Time: View the remaining time to reach your desired charge.
Expense Tracking: Check your charging history, manually add entries, or export your data in CSV format for detailed tracking.
Add Vehicles: Is your model not in the list? Request its addition directly from the app.
Compatibility:
WattaCar works with all electric vehicles and all charging stations (home chargers, Tesla Superchargers, Ionity, Shell Recharge, EVBox, ChargePoint, Electrify America, Blink Charging, Webasto, ABB, Alpitronic, EVgo, Fastned, Enel X, GreenWay, and many more).
Free Trial and Pro Subscription:
Enjoy all the features of WattaCar during your trial period to plan your charging with peace of mind. At the end of your trial, your Pro subscription will automatically start for an optimal experience.
Privacy and Accuracy:
Your privacy is our priority: no personal data is collected.
Estimates may vary depending on external factors (battery age, temperature, charger type).
Our database is regularly updated.
Database Information and Disclaimer:
The vehicle database used in WattaCar was manually created by collecting data from manufacturer brochures and various available sources. Although we strive to make this database as accurate and reliable as possible, errors may still exist. The application developer cannot be held responsible for these errors and has no affiliation with manufacturers or specialized websites. Users can anonymously report data errors from the app. Please note that no compensation is provided for corrections or vehicle suggestions submitted by users.
For more information, visit our website at https://wattacar.app
Take the time to read the Privacy Policy and legal documents of the application on the website: https://wattacar.app/legal.html
Terms of use : https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
This app hasn’t received enough ratings or reviews to display an overview.
What's New:
New real-time counters:
A dedicated counter now displays the cumulative cost of your charging session in real time, right next to the remaining time countdown.
A second counter shows the estimated accumulated charge in percentage during the charging session.
Charging cost estimation:
Enter your electricity rates, whether for peak or off-peak hours at home or the cost per kWh at public charging stations, to get a precise cost estimate before plugging in your vehicle.
Expense tracking and charging history:
View a detailed history of your charging sessions, including date, cost, duration, and location.
Manually add, edit, or delete entries.
Export your data in CSV format for monthly or yearly tracking.
Smart alerts:
Receive a notification when your battery reaches the desired charge level.
Avoid unexpected fees with overcharge alerts.
Battery lifespan optimization:
WattaCar recommends charging between 20% and 80% to preserve your battery's lifespan and save money.
Clear cost visualization:
A visual breakdown of costs between peak and off-peak hours helps you better understand your energy expenses.
Improvements and fixes:
The interface has been optimized for better readability of real-time counters, particularly for cost and recovered energy.
Minor fixes have been made for a smoother user experience.
The developer, Laurent Peignault, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Laurent Peignault
- Size
- 8.6 MB
- Category
- Utilities
- Compatibility
Requires iOS 18.4 or later.
- iPhone
Requires iOS 18.4 or later. - Mac
Requires macOS 15.4 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.4 or later.
- Languages
English and 3 more
- English, French, Japanese, Simplified Chinese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Annual Pro $11.99
- Monthly Pro $1.99
- Copyright
- © Laurent Peignault - 2025

