Know your carbon footprint


Carbon is an app that informs and inspires people to minimize the carbon emissions caused by their energy use.


Carbon requested that we design an app to help to make a serious topic like carbon emissions more fun and engaging. Not only were we able to assist Carbon with its mission of making the world breathe easier, but the app was also featured in the App Store as one of the top environmentally-conscious mobile apps.


Available on iOS

Carbon score calculations

Carbon’s concept got our interest from day one. Our main challenge was to build something intuitive, educative and fun at the same time. The user-friendly initial questionnaire collects the daily habits data in light format. At the same time, our algorithm uses custom calculations and a pre-defined database to turn each user’s CO2 production into a score.


We developed a user-friendly questionnaire that collects data on users’ daily habits, while our algorithm uses custom calculations and a pre-defined database, to turn each user’s CO2 production into a weighted score.

Shareability & virality

Sharing the score played a big part on the app’s virality. We developed an easy and engaging score-sharing system that ensured the application to would increase in organic downloads.

Technical challenge

Carbon contains a massive amount of complex data such as the North-American Electricity plants, for each zip code and, car emission rates. The challenge was to develop a system that would extract and calculate user’s carbon emissions per criteria efficiently. Our solution was a dynamic server database structure and query system to provide the user with fast calculations.

Our values

Partners - not providers.

Guaraná will act as your partner and advisor throughout the whole process. Our app development process is tailored to be collaborative and we truly embrace each one of our projects. Being a well rounded and skilled team makes us a great long-term partner for both startups and established companies.


Execution equals excellence.

We truly commit to your digital app development project's success. We're passionate about turning your web & mobile application idea into a high-performance digital product with authentic design, smooth usability and amazing engagement. We provide nothing less than the best user experience possible.


High-quality code built for business growth

Our tech team ensures we always craft the best logic for your users and your strategy. Our scalable solutions are ready to accommodate any new features you might need - when your business evolves, our code evolves with you.



Apps developed

Top Canadian App Developer 2021



Million Users Acquired