Dr. Prius / Dr. Hybrid 4+

Your hybrid battery doctor

Big Wheel Tech Inc

Designed for iPad

    • 3.0 • 76 Ratings
    • Free
    • Offers In-App Purchases



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 253+ 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 http://PriusApp.com/obd.html 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. 2020 Prius all lineup except 4WD version
2. 2020 Highlander hybrid
3. 2017-2019 Prius Prime Plug-In
4. 2016-2019 Prius Gen4 One, Two, Two Eco, Three(Lithium) and Four(Lithium)
5. 2012-2015 Prius Plug-In
6. 2009-2015 Prius Gen3
7. 2003-2009 Prius Gen2
8. 1997-2003 Prius Gen1 (partial support)
9. Auris
10. Aqua
11. Prius C
12. Camry Hybrid
13. Avalon Hybrid
14. Highlander Hybrid
15. Lexus CT200h
16. Lexus ES300h
17. Lexus HS250h
18. Lexus RX400h
19. Lexus RX450h
20. Lexus GS450h
21. Lexus LS600h
22. Lexus UX250h
23. CHR Hybrid

Any feedback or feature request please reach out to support@PriusApp.com

What’s New

Version 3.4.19

1. Support Prius Gen5
2. Update Prius Gen4 SOC% translation
3. Dynamic calculate number of blocks and blades

Ratings and Reviews

3.0 out of 5
76 Ratings

76 Ratings

Brian Mel ,

I’m giving this app 3 stars because…

The app worked great for my 2016 Prius for removing the seatbelt beeps and on my 2014 for removing the backup beeps.

I plugged this into my 2021 Camry Hybrid (which is in the supported list), it detects the car and shows all the stats; however, disabling the seatbelt option does nothing and seems to not save the setting.

The other main issue is it prompts me to purchase an upgrade. It DOES NOT list the differences between basic and shop mode and you can’t find that info anywhere. Not in the app, online, Google searches or here in the App Store.

I don’t want to pay if my car is not supported. All I want to do is disable seatbelt beeps.

Paulpsps ,

Essenchial high milage app.

I admit, I did not use this app for the first 200,000 miles that I drove my 2005 Prius. After that however it has been an indispensable tool to assist me in the maintenance and service required for the next 400,000 miles. I expect it will continue to work for me, my friends and family who now owns hybrids. As an essential tool, it does take a while to learn all of its features in and capabilities, there are many good videos in the help section, just a few clicks away from the main screen, where Jack, the developer, explains his motivation behind features and how to get the most from the free portion and why the paid version is such a good value to people maintain their own Prii.
I’m still enjoying my 2005, now with over 630,000 miles and the new Lithium upgrade Jack used this app to help him make a reality for all of us driving our Prii many more miles than we ever thought they might go.

Gafdort ,

Works great - must have correct OBD2 adapter

This app works great with the right adapter. Bad reviews are a result of not using the correct adapter. Go to the developer’s website to see recommended/junk adapters. The developer has the best customer service I have ever experienced. I have contacted him repeatedly with questions about installing my hybrid battery and he always responds within a few hours. I recently upgraded my hybrid battery and accidentally crimped of the wires (my fault). Developer sent me a shipping label that same day, repaired it upon receipt, and returned it with express shipping. Thank you, J.

App Privacy

The developer, Big Wheel Tech Inc, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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