This question is motivated by Green social media to connect with nearby people to help reduce carbon footprint. I found that question very interesting and started googling to try to find an answer (to no avail this far) but the comment by THelper made me curious about apps that promote sustainability in one way or another.
He mentions Joulebug (that I haven't tried yet) in his comment. I also know another app that "promotes" (although not so directly as the previous one) sustainability, Forest, which is a timer designed to avoid getting hooked to the phone and allows you to plant real trees (they colaborate with an initiative called WeForest) if you spend enough time away from your phone.
I find that apps are a great way to introduce new people to sustainable living making it look real fun. I think that they might help some of my friends to start a more sustainable lifestyle.
So my question is, are there more apps that promote sustainable living in some way out there?