In-app purchases
3.47K reviews
Content rating
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About this app

TezLab is a companion app for Electric Vehicles (EV). Track every trip you take in your car, compete against your friends on various metrics like distance traveled or efficiency. Control your car's climate, max charge level, and more within the app.

It's the app your EV deserves.

A qualified electric vehicle is required to use TezLab.

Terms of use: https://tezlabapp.com/terms
Privacy Policy: https://tezlabapp.com/privacy

Disclaimer: This software and documentation are not provided or endorsed by the makers of the electric vehicles. Use TezLab at your own risk. TezLab uses some of the same interfaces used by the official EV apps, however, those interfaces are undocumented and unsupported by the EV makers and HappyFunCorp cannot guarantee proper operation of TezLab. You are responsible for any changes to your car by using TezLab (car controls) as TezLab can unlock the car, and perform other functions on the car. HappyFunCorp is not liable for any damages to you, your car or any other object in conjunction with the use of this app.
Updated on
Apr 11, 2024

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Location, Personal info and 5 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

3.36K reviews
A Google user
January 29, 2019
The app is wonderful and gives many extra details than the standard Tesla app. The only real issue is that the trips counter is way off. It's showing about double the trips than what I've actually made. Also the app is saying I have 30% Phantom drain but I don't. Not sure why it thinks that. *Update*- can't log into app with Facebook. Says I'm logged in once I click the button and keeps me at the build profile screen. Can't advance or go back unless I force close and reopen just to do it again.
6 people found this review helpful
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Jose Fernandez
December 8, 2020
Great App. I was getting excessive phantom drain in my model S. Now I'm able to put it to sleep whenever I get home or work to make sure I retain as much battery charge as possible. Every once in a while it wakes up, but I've still decreased my phantom drain by a lot. It's also nice to see the efficiency of charging your car and power used from point A to point B. Recommended!
15 people found this review helpful
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A Google user
April 2, 2020
I really like the pro version, it's nice to have the export ability. One thing I would really like to add is the ability to have set points when driving in cold weather. I live in MN and notice that I can lose up to 50% of my range in the coldest temps. If there was a way to have an app shut off the heat when it reaches, say, 70 F and then turn on again when it drops down to around 62 F that would be great! I find I'm doing this manually to get more range but it seems like something an app could do.
13 people found this review helpful
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What's new

bug fix for web dash auth modal not working with too many cars