Almost every day I have to cross the IJ (that's a river) in Amsterdam by ferry. Knowing when the next service will depart and which of the available services is my best option saves me a lot of time. Several traveling apps and services exist already but none provided what I needed: a simple comparison of departure times so that you can instantly pick the best option. So, I decided to build it myself.
The available ferry services and departure times can be accessed through an API written specifically for this app. The app itself is for Android only and written in Java.
See: Google Play.