wattata

wattata

EV trips, battery & charging

4 ratings
4 reviews
Free
In-App Purchases

Details

Released
October 21, 2026
Updated
October 28, 2026

Features

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About

Track your electric car's energy consumption, charging costs, and battery health. Analyze drive efficiency, charging habits, and gain insights into your vehicle's performance. Supports business trip reporting and CarPlay integration.

✓Track drive energy consumption and efficiency
✓Monitor charging costs and battery status
✓Analyze drive curves and regeneration
✓Compare efficiency with other drivers
✓Estimate battery capacity
✓Generate CSV and PDF reports for business trips
✓CarPlay integration for real-time drive data
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+3

What's New in wattata

1.3

October 28, 2026

The link with the car comes up faster when the iPhone reconnects. If the car stops sharing its position, the Car location card now says so, with the date of the last position it sent. The Efficiency widget keeps your last known fleet rank instead of going blank. The Battery screen gets ready for winter: once a few winter nights and charges are in, a Summer and winter card compares capacity and range across the two seasons and says what winter cost. In More, subscribers see a wattata supporter badge, and a red dot points to feature requests newly open for a vote.

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Subscriptions & In-App Purchases

12 months

Full access to wattata for 12 months

$39.991 Year
How to cancel wattata subscription ⁉️

User reviews

Beautifully designed and excellent tool

This is a very well thought out and beautifully designed data-rich tool for EV car owners that fills in the gaps that car manufacturers are ignoring. This app provides a comprehensive dashboard for battery state of charge and regeneration, energy use efficiency including a detailed drive history, also with factors that influence EV use like weather. Throws in design themes for good measure. For me, this app has become an essential part of my EV car management. I’m really happy to see that there are folks out there who are implementing some seriously creative, intelligent and excellent work in the EV space. If you have an EV, this app is a great friend.
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Response from developer

Thank you so much!

Must-have for the Prologue

This and Re-link are basically mandatory for a good experience with the Honda Prologue.

Response from developer

Thank you!

Great app!

Very useful! I really like the design. Works well with my Polestar 3.

Response from developer

😍

Data is King

Finally an app to show an in depth look into your EV’s usage and regen.
App experience is well refined, amazing developers!

Response from developer

Thank you!

Developer apps

FAQ

What is wattata?

wattata is an independent app designed in Québec that helps you track your electric car's energy consumption, charging costs, and battery health. It provides detailed analysis of each drive and charge, turning raw data into clear insights on your iPhone.

How does wattata work?

wattata consists of two apps: one for your car's screen that records data while driving and charging, and an iPhone app that analyzes this data. You link them by scanning a code shown in the car with your iPhone, requiring no account or password.

What kind of data does wattata track?

wattata tracks energy used per drive, efficiency, regeneration, drive cost, charging energy added, charging cost, battery charge level distribution, energy lost while parked, and estimates battery capacity. It can also track mileage forecasts and weather's effect on range.

Does wattata have ads?

No, wattata does not contain advertisements. The app is designed with user privacy in mind and does not include any analytics kits or crash reporters by default.

What electric cars are compatible with wattata?

wattata is compatible with electric cars from Polestar, Volvo, Chevrolet, Cadillac, GMC, Honda Prologue, Acura ZDX, and more. Compatibility depends on the specific model and year, and you should look for wattata on your car's screen to confirm.

What are the subscription costs for wattata?

wattata offers a 14-day free trial from the first pairing. After the trial, a monthly subscription costs $3.99, and a yearly subscription is $39.99.

Can wattata be used for business expenses?

Yes, wattata allows you to tag work drives as 'Business'. The app can then export monthly business trip data as a CSV file and generate a PDF report for specific trips, gathering all associated drives and charges on one page.

How does wattata handle user privacy?

wattata prioritizes privacy by design. Analysis occurs on your iPhone, and no account or password is required. Optional features like 'Locate vehicle' and 'fleet comparison' send minimal data to servers only when enabled by the user.