Sadly, Apple doesn't allow in-app donations so we had to remove this option from the app.
A big thank you to everyone who has donated! We encourage everyone to still donate their earnings, but from now on, this will need to be done privately.
We do still have the GasForGood referral program. So when non-profits refer a user to us, Upside will donate $2.50 initially and then 2¢/gal for every gallon that member buys.