This was the first app I ever built and published to the iOS/Android store
It lets your friends know if you’re open to hangout, and sends everyone a notification. You first have to add someone as a friend, and mark what you wanted to do.
I built it with Xamarin.Forms and the data was hosted on AWS using DynamoDB, S3 and Lambda. I handled all of the design on this one.
It’s no longer published, but here are some more screenshots: