I have been playing a lot with the data visualisations from the "Dataviz" section of Development Hackers. It's the best tool I saw for learning about trends in health, education and many other important factors for global development :-)
It's a web application to test yourself on world facts for each of the sustainable development goals (no poverty, climate action, good health, affordable energy...).
When you answer a question, they give you a custom answer with more information and sources. It's very well made and fun to use, and also I realised there are a lot of things I don't know about the world and global development. Even the Sustainable Development Goals, I didn't really know about. I recommend everyone to try it, but also I think it can be a big source of inspiration for us technologists who want to build positive projects.
Can we get the people who built the app to give us some comments on the process? I think it's a collaboration between a design agency called Antrop and a development agency called Prototyp.
They both have case studies on their websites, but the design one is in Swedish so maybe use a translator :)
It's projects like this that I want to work on but I don't really know how to get started. It must be difficult to do marketing or distribution for it too. Maybe the people from Gapminder can give us their thoughts!