Dr. Prius is an app developed to help professional Toyota/Lexus hybrid repair shop or owners to examine the health of the High Voltage battery. It turns your mobile device into a professional diagnostic equipment that usually cost thousand of dollars, it is being trusted by 35+ professional repair shops around the world.

Dr. Prius perform test and provides access to all the relevant battery information to quickly help identify problems with a simple touch on the screen of a smartphone, do not fall victim to bad battery, test the battery and print the certificate to prove the health of the battery system.

Note: This app requires a ELM327 Bluetooth OBD interface to communicate with your hybrid vehicle, most of the cheap clone ELM327 will not work due to inability to switch between ECUs in your vehicle. Please visit for more detail or feel free to email us for any adapter compatibility question.

Some useful features:

1. Real-time battery monitor with clever charts and numbers.
2. Life expectancy test with proprietary algorithm to find out battery remaining life.
3. Full battery test to run diagnostic on battery system.
4. Print or share test certificate with customer.
5. Read error codes, reset error codes in a breeze.
6. Disable or enable the reverse beep, seat belt beep, adjust battery fan speed and more.
7. Find nearby reputable hybrid repair shop.

Current supported model:
1. 2017-2019 Prius Prime Plug-In Beta Support
2. 2016-2019 Prius Gen4 One, Two, Two Eco, Three(Lithium) and Four(Lithium)
3. 2012-2015 Prius Plug-In
4. 2009-2015 Prius Gen3
5. 2003-2009 Prius Gen2
6. 1997-2003 Prius Gen1 Beta support
7. Auris
8. Aqua
9. Prius C
10. Camry Hybrid
11. Avalon Hybrid
12. Highlander Hybrid
13. Lexus CT200h
14. Lexus ES300h
15. Lexus HS250h
16. Lexus RX400h
17. Lexus RX450h
18. Lexus GS450h
19. Lexus LS600h
20. Lexus UX250h
21. CHR Hybrid

Any feedback or feature request please reach out to

What’s New

Version 3.3.10

1. Fix side menu navigator crash on iOS 13
2. Fix screen orientation issue on iOS 13

Ratings and Reviews

3.7 out of 5
48 Ratings

48 Ratings

gheegouz ,

Before I buy The app

Hi, I own Prius 2015 and I would like to check my hybrid battery life and power. Can I download the app on my iPhone 7 which supports WiFi? And can download the app on my tablet too. I have obd ll works with WiFi. Thanks.

Developer Response ,

Yes, the App goes with your iOS account therefore you can install and use it on multiple devices.

Bambatayumbaya ,

Worth every penny

Peace of mind being aware of a Prius’s health and condition.
Great app, I would just add to it, a chatting window for sharing experiences on Priuses, and Hybrid in general to learn more about them.
A list of Codes and significations. The knowledge of a specific failure cell on Hybrid battery pack would be great.
Thanks for the app, so far so good, thanks for updates and the work.

anneOld ,

You Need This

I’m a first time Prius owner. Bought mine used at about 30k miles and 3 yrs. It’s been great but I’m worried about the battery now. This app has addressed problems with the Prius I didn’t know I had! Like you can disable the backup beeping noise! Who doesn’t want that?!
A plus and easy to use.


Big Wheel Tech Inc
31.8 MB

Requires iOS 9.3 or later. Compatible with iPhone, iPad, and iPod touch.


English, Arabic, Dutch, French, Italian, Japanese, Polish, Russian, Simplified Chinese, Spanish, Swedish, Traditional Chinese

Age Rating
Rated 4+
© 2018 Big Wheel Tech
In-App Purchases
  1. Basic package $12.99
  2. Shop special $29.99


  • Family Sharing

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

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