Joro App

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Introducing Joro

Joro is an automated, high-resolution, and real-time carbon footprinting system for iOS and Android. We use smartphones as sensors to help people understand their energy use, reduce emissions, and share sustainability progress with their friends and communities.

People who want more sustainable goods & services 0

People who understand that their actions affect our climate 0


Connecting Values with Action

Achieving a low-carbon future requires better measurement tools. Joro bridges the gap between our values and our actions, helping us to create a better future.


Joro helps people track their carbon footprints in real-time, looking across travel, residential, and purchases & activities.

Joro provides each user tailored suggestions for lower-carbon activities that fit with their lifestyle.

Joro is a social platform through which people can engage with friends and neighbors to share and compare progress toward personal sustainability goals.


Our Harvard/MIT team brings breadth and depth of expertise across energy demand modeling, software development, and business.

Co-Founder / COO

Julien has been involved in climate change research since 2010 and now researches renewable energy technologies and policy as a Masters student in the MIT School of Engineering.

Co-Founder / CTO

Cressica is a PhD candidate at the Department of Urban Studies and Planning at MIT. She founded the Mobile Carbon Footprinting Research Group. Her research forms the foundation for Joro.

Co-Founder / CEO

Sanchali is a second-year MBA student at Harvard University with a background in clean energy, smart cities, and management consulting. Previously, she worked Tesla and Dalberg Advisors, and co-founded a social enterprise.

News & Notes