Carista is a mobile app which empowers you to seamlessly diagnose, customize, and service your car. Just plug in your OBD2 adapter, launch the app and save time and money on dealers and mechanics.

Is my car supported? Check here:

Find out why your "Check Engine" light is on: Carista shows you a list of the fault codes stored in your vehicle, as well as their meanings. You can also reset the "Check Engine" light.

Dealer-level electronic diagnostics (fault code checking and resetting) of all modules in the vehicle, incl. ABS, airbag, and other manufacturer-specific systems.

Personalization of comfort & convenience features of the car. Customize your car to your liking and get rid of all those annoyances you have to deal with every time you get into your car. You can even enable hidden features that you didn't even know your car had!

Carista shows you if your car is ready for Emission tests -- that way you can avoid the trip to the testing station before the vehicle's systems have gathered enough driving data to be ready for testing.

For some Volkswagen, Audi, SEAT, Skoda models:
• Electronic parking brake (EPB) retraction tool, Service reset, Launch control counter, Detailed ECU information
For some Toyota, Lexus, Scion models:
• Tire pressure sensors (TPMS), ABS/VSC/TRAC inspection, Detailed ECU information


1. Supported vehicles
Advanced features are only supported on certain models by Volkswagen, Audi, SEAT, Skoda (VAG), BMW, Mini, Toyota, Lexus and Scion. See:

2. Pricing:
All paid features (see above) are available with an in-app purchase of our Pro functionality: a 1-week pass for $9.99 USD or an auto-renewable subscription at $39.99 USD/year. If you use the official Carista OBD2 adapter, you will receive a free one-month trial of all paid features by picking the yearly subscription. Here are Apple's rules on auto-renewable subscriptions:
• Payment will be charged to iTunes Account at confirmation of purchase
• Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period
• Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal
• Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase
• Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable

3. Hardware Requirement:
To use Carista, you need an OBD2 adapter. You can use the Carista OBD2 adapter, a Kiwi3 adapter or a generic ELM327 v1.4 WiFi adapter (just make sure it’s not fake/defective; note that generic Bluetooth adapters are not allowed by Apple). See:

Info and help at
Terms of use and Privacy policy:

What’s New

Version 3.8.4

New in v3.8:
- Advanced diagnostics for Nissan & Infiniti

Ratings and Reviews

3.5 out of 5
92 Ratings

92 Ratings

AtlGli ,

2015 VW GLI gen 3 ea888.3

I love this app. I knew I wanted to change a few characteristics of how the lights operate, windows operate, and the locking procedure for the car. I was able to change much more than I anticipated through the app and the supporting Carista adapter. Recently this new update came out, claiming that you can change the volume for the stupid sound aktor device Vw/Audi uses, and while most features added to the app work with my car, this one doesn’t seem to even show up as an option to change. I’m even able to change the torque steer compensator; so while the app has tons of features, some may claim to be compatible with your car but not functional. I’ll do 5 stars if the devs can fix the issue or come out and specify which models of Vw/Audi get the sound aktor ability.

EDIT: function doesn’t apply to my vehicle. 5 stars added.

rkricketts ,

Too Expensive!

As a (former) retail software developer, I understand why devs are moving toward subscription models. But $40/year is too expensive for what is generally an infrequently-used, casual-use app. None of the other apps I subscribe to, like RoboKiller and Overcast to name just two, cost anywhere near as much and I use them *far more often*. Overcast could quadruple its subscription and I’d still pay it because I use it heavily – hours per week. Its use:cost ratio is very favorable. But Carista, not so much. I’d probably use this a few times per year, that’s all. Very unfavorable use:cost ratio.

Carista, as I understand, already discourages commercial use and “oversharing” by limiting the number of vehicles (by VIN) that can be tweaked. I’m fine with that. I just want to tweak our two cars, that’s all. But I want to revisit my tweaks occasionally.

Offer a $10 or $15(tops) per year sub and I’m pretty sure the developer will see many more annual subs. I would sub for that. $40 is a lot for a seldom-used app. $10 or $15 isn’t. And I will not pay $10 for one week, either. That math is even worse.

Will_074 ,

It’s ok, but doesn’t worth its price!

40 bucks for this is unreal, the app it self is okay. But for the price we should have more options instead windows/lights and door to be reprogrammed.
My Audi A3 could be reprogrammed on how I want to lock and unlock, windows, lights (which was cool) but it doesn’t justifies the price!
It does reads hidden codes (which is cool) but again 40 bucks nahhh
I’d say for 9,99 it’s okay, and they do have this price but for a week lol (see they think that this thing worth like gold). Nice try, I took advantage of the free week that they gave me and could do everything I wanted during this time. Even after finished I said ... okay I’ll buy it cause it was cool, then 40 bucks lol (nope) 9,99 per year and I’ll be here buying and also giving the 5 stars.


Prizmos OOD
29.7 MB

Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, German, Japanese, Russian, Spanish

Age Rating
Rated 4+
© 2014-2018 Prizmos OOD
In-App Purchases
  1. Pro $39.99
  2. Pro 1-week Pass $9.99
  3. Pro $39.99


  • Family Sharing

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

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