Decarbon: Climate Change App

34 reviews
Content rating
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About this app

Decarbon empowers you to act on climate change! This simple app helps individuals, small businesses, and corporate green teams to eliminate carbon emissions and take collective climate action.

It's like FitBit for tracking your carbon emissions.

Key things to know about Decarbon:
- Set your carbon budget and reduce your emissions over time by completing climate actions
- Join climate action teams and collabs to get inspired and stay motivated with friends, colleagues, and leaders in the climate movement
- Purchase carbon credits to go net zero and offset any emissions that you can’t eliminate on your own
- 100% transparent - Open-source carbon emissions factor database
- 100% free (no ads or paywalls)

How Decarbon works:
1. Automatically track purchases and see associated CO2 emissions
4. Form teams with your friends and colleagues to share personalized ways to live more sustainably
3. Join collabs to learn important topics about climate change and sustainability from experts
4. Offset unavoidable emissions with carbon credits

Decarbon at your workplace:
Engage your coworkers on sustainability using. Sustainability and HR managers can build a culture of sustainability that boosts employee retention and attracts new talent. Decarbon is free to use for teams of any size, with the option to upgrade for additional features.

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Give a damn about climate change!


I started Decarbon because I'm... scared. The climate emergency feels more and more urgent, and for years I've struggled to understand both my contribution to the problem and what I can actually do about it.

The result is Decarbon: a simple tool to help us demystify our carbon impacts as we push for systemic change. It’s our mission to bring humanity into harmony with nature through consumer empowerment.

If you have any feedback, or want to try Decarbon with your company, my co-founder Zack and I would love to meet you!



Does my carbon budget actually matter in the grand scheme of things?
One person's carbon impact is a teeny tiny drop in the giant lake-sized bucket of global emissions. But! Your personal carbon budget absolutely matters. For a few reasons:
1. Millions of individuals and businesses actively striving to reduce their impact can make a difference.
2. Educating yourself and your community on the biggest areas of climate impact can empower you to know where to focus your activism.
3. The urgent need to respond to climate change demands that we try every single thing we can to reduce our collective impact. Let’s go all in.

How does Decarbon calculate the CO2e impact of my purchases?
Tap the info icon on your purchase to see the exact calculation Decarbon made! The CO2e impact for your purchases is a simple multiplication of the purchase amount, the CO2e emissions factor (CO2e per $) of the purchase category, and any modifiers that you can apply to the purchase to make it more accurate.

What should my annual CO2e budget be?
It should be as low as humanly possible! The initial goal on Decarbon is 7 metric tons of CO2e per year, so you can start with that and then lower it as you begin to understand your impact.

How does climate change action work on Decarbon?
In Decarbon, anything that helps us mitigate or adapt to climate change is a “climate action”. All climate actions are created and then filterable by the teams you join. The Decarbon team that you start with has a list of dozens of actions.

How do Decarbon’s expert collabs work?
Decarbon collabs bring everyone in the app together to work towards the same climate action goal. These collabs are hosted by a different leader in the climate movement. Collabs are a great way to learn and hear how these experts became more involved in their particular area of focus.

Will Decarbon work outside the USA?
You can use Decarbon anywhere, but the experience is currently optimized for individuals living in the United States.
Updated on
Apr 16, 2024

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Financial info
This app may collect these data types
Location, Personal info and 5 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

33 reviews
Evan Dent
October 15, 2022
It's a great tool that automatically categorizes carbon footprints by analyzing types of purchases. For example, utilities payments even have a modifier on the percentage of renewables it is. However, the feedback forms are broken on the app, so I'm not able to submit feedback on a request to modify automotive purchases as being an electric vehicle.
Did you find this helpful?
November 18, 2022
Hi Evan! Thanks for the awesome feedback! And sorry that the feedback form was broken :/. We'll definitely look into that. I've made a note about being able to modify auto purchases to specify EVs - great idea! You can always reach out at -- Kyle, Founder. Update -- we fixed the feedback form! :)
Chase Burke
December 11, 2021
Super clean, straightforward app that helps you track your carbon footprint based on purchases you've made. I like that you can manually add items (sort of like a calorie counter? for the earth?) or have them linked based on a card or account. The new beta option to purchase offsets is SUPER cool.
7 people found this review helpful
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Dennis Ng
February 25, 2022
Decarbon makes it easy to track my carbon footprint patterns (key word - PATTERNS) and really gives me an easy way to see where I should cut back to make me more responsible guy. As the app creators said it’s really like a Fitbit to track my carbon footprint. Because of this, it’s important to remember that the app is best to track trends over time, not measure each and every activity/purchase’s CO2 output.
7 people found this review helpful
Did you find this helpful?
February 25, 2022
Thank you so much for your review, Dennis! Let us know if there's anything you'd like to see from Decarbon!

What's new

Team leads can now set an engagement incentive and pin climate actions