iPhone Screenshots


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: http://tezlab.happyfuncorp.com/terms
Privacy Policy: http://tezlab.happyfuncorp.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.

What's New

Version 2.1.14

We now clear the Tesla Token on logout

Ratings and Reviews

3.3 out of 5

17 Ratings

17 Ratings

What a cool app for your Tesla!


Just heard about this app while listening to the Tesla Tidbits podcast and had to give it a shot since even Elon admitted this was a cool idea (to get badges for supercharger visits). I guess previously you had to pay for this app but now that it is free - why not give it a shot? My only suggestion is to perhaps modify your keywords so this app can be more easily found in the App Store. I wasn’t sure of the exact name so it took me some time to track it down, but glad I finally found it!

Great app to monitor efficiency and other items


I have been using this app for about 6 months and thoroughly enjoy it! It allows me to track trip efficiency and vampire drain. I would definitely recommend Tesla owners give it a shot! The in car browser page is cool for realtime stats.

I would like to see more in depth options in the future maybe more battery info and a way to track range over time to monitor degradation??

Awesome work keep it up!!!

Login with twitter of FB

Chroma key

Come on guys!! What is wrong with you?! Really? I am REQUIRED to login using twitter or Facebook? Why? In this day and age how could you use such a bs concept of asking people to connect their social media nonsense to your app? This app had so much promise. All I wanted was to connect it to my tesla and monitor my car's performance. Shouldn't be too difficult right? But no, you guys had to stick this whole social media crap in there somewhere. Like the dumb app isn't even letting me create my own TezLab profile without connecting either my twitter or FB. This is so disappointing. I am deleting this app and I have been waiting for this since the beta testing days.

Developer Response

We now support logins without Facebook or Twitter.


HappyFunCorp LLC
31.2 MB
Requires iOS 9.3 or later. Compatible with iPhone, iPad 2 Wi-Fi + 3G, iPad Wi‑Fi + Cellular (3rd generation), iPad Wi-Fi + Cellular (4th generation), iPad mini Wi-Fi + Cellular, iPad Air Wi-Fi + Cellular, iPad mini 2 Wi-Fi + Cellular, iPad Air 2 Wi-Fi + Cellular, iPad mini 3 Wi-Fi + Cellular, iPad mini 4 Wi-Fi + Cellular, 12.9-inch iPad Pro Wi-Fi + Cellular, 9.7-inch iPad Pro Wi-Fi + Cellular, iPad Wi-Fi + Cellular (5th generation), 12.9-inch iPad Pro Wi‑Fi + Cellular (2nd generation), and 10.5-inch iPad Pro Wi‑Fi + Cellular.
Age Rating
Rated 4+
This app may use your location even when it isn't open, which can decrease battery life.
© 2017 HappyFunCorp, LLC


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

You May Also Like