Karai by DriveKey 4+

CO2 offset & mileage tracker

DriveKey Corporation

Designed for iPhone

    • 4.0 • 1 Rating
    • Free

iPhone Screenshots


Helping you track your carbon emissions
Karai by DriveKey is your new eco-driving companion that calculates your carbon footprint every time you drive. Karai gives you an eco-score to help you to drive more sensitively and gives you the ability to offset your carbon footprint. Keep Karai with you on every journey to create a cleaner and more sustainable environment.

Driving your awareness
Karai learns your driving style and gives you scores for braking, acceleration and cornering smoothness. How you accelerate, brake and navigate bends significantly impacts your car’s fuel efficiency. Driving more eco-sensitively can help you to save on petrol and diesel long-term and will also reduce your vehicle’s impact on the environment.

Offset your emissions to help fund innovative projects
Rewilding more of our planet, planting more trees, protecting our existing wilderness areas and switching to more renewable energy sources, we can reduce our emissions and effectively offset the CO2 from your vehicle. These are precisely the innovative and essential projects that Karai supports to help build a better future for our world.

Choose what you want to pay
Karai is free to download and use, and you can pay to offset your emissions when you want to. You can even offset your carbon footprint to stay carbon positive.

When you pay to offset your carbon footprint through Karai, your money is invested in projects including renewable energy schemes and afforestation programmes. These projects are verified and accredited by world-leading carbon registries such as The Gold Standard (WWF), Verified Carbon Standard (VCS), and The United Nations.
Among the projects we support are UK-based charities such as Plant a Tree Foundation and Ribble Rivers Trust, as well as international projects such as Eden Reforestation, Madre de Dios REDD+, and Brazilian Amazon REDD.

All suggestions and feedback are most welcome! Please visit our Karai website to get in touch: https://www.kar.ai/ or use the Settings menu in the app.

What’s New

Version 2.4

We are all about accuracy and precision. This release will improve on both! Thank you for downloading.

Ratings and Reviews

4.0 out of 5
1 Rating

1 Rating

Gitanomad ,

Great, when it works.

I’m an environmental science teacher, and I’d previously used OffCents for years to track my own carbon emissions, and as part of our climate change unit with my students. That app stopped working last year, and I’ve spent some time looking for new alternatives. Karai seemed to be the answer, even though I dislike that it requests your license plate number rather than your model of car.

We’ll, it’s working fine for me personally, but I have a large number of students whose plate number can’t be found, and they’re unable to enter in information manually. Moreover, a sizable portion of those who do have their car in the app—and location tracking allowed—show no activity in spite of frequent driving. I’ve been unable to find tutorials, blogs, or any other support material to be able to figure out what’s going on.

It’s embarrassing to have suggested this as a teaching tool and to get such inconsistent results.

App Privacy

The developer, DriveKey Corporation, 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 Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Identifiers
  • Usage Data

Data Linked to You

The following data may be collected and linked to your identity:

  • Location
  • Contact Info
  • Identifiers

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Identifiers
  • Usage Data
  • Diagnostics

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


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