The app enables people to create content in order to fund raise micro-donations for charities, and enable direct contact between beneficiaries (a kid in hospital, or a team in Uganda) and the content creating users.
Some people dedicate their entire life to philanthropy, if you don't have time, maybe you could donate just 5 minutes?
Brighten a kids day by drawing them a giraffe, as they await an operation in hospital.
Write an encouraging message to those installing solar panels in Uganda
Those messages/drawings get shown to the team in Uganda, and also acts as micro-fundraising as users donates £1/$1 directly to charities.