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 2.9.3

Customize gas money saved with your own gas and electricity prices.
Upload or replace your avatar image by tapping on your avatar at the top left of your profile.
Bug fixes and improvements.

Ratings and Reviews

2.9 out of 5
46 Ratings

46 Ratings

C Neptune ,

Tesla not sleeping

I really like the data that this app provides. However, I have noticed since I started using the TezLab app that my phantom drain is rather high on my model 3. I think it may have something to do with the time interval between pings from the app reaching out to the car for data and these pings preventing the car from going to sleep. Perhaps you can pass this info along to the creators to see if they can address this issue. I want to keep sharing my data with the tezlab app, but the amount of drain I am getting ~12-15 miles of range per day is just way too high.

RZABulldog ,

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!

Chroma key ,

Login with twitter of FB

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
32.5 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad 2 Wi‑Fi + Cellular, iPad (3rd generation) Wi‑Fi + Cellular, iPad (4th generation) Wi‑Fi + Cellular, 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, iPad Pro (9.7-inch) Wi‑Fi + Cellular, iPad (5th generation) Wi‑Fi + Cellular, iPad Pro (12.9‑inch) (2nd generation) Wi‑Fi + Cellular, iPad Pro (10.5-inch) Wi‑Fi + Cellular, iPad Wi-Fi + Cellular (6th generation), iPad Pro (11-inch) Wi-Fi + Cellular, iPad Pro (12.9-inch) Wi‑Fi + Cellular, iPad mini (5th generation) Wi-Fi + Cellular, and iPad Air (3rd generation) Wi-Fi + Cellular.



Age Rating
Rated 4+
This app may use your location even when it isn't open, which can decrease battery life.
© 2018 HappyFunCorp, LLC


  • Family Sharing

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

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