Caffeine Tracker, as the name suggest, is a caffeine tracking app. I decided to built it, because all the others in the App Store are either dificult to use or have a horrible UI/UX. I get daily downloads and is the one I'm most proud of. Website

This app uses the health data stored on your iPhone and based on your activity it calculates a number. The more active you are, the higher this number will be. Currently I'm in the process of re writing it using best practices & adding more functionality. Website

This is the first app I've published on the App Store. Given the final price of your bill it will calculate the tip base on the percentage you select. Also, it can split the total between multiple people. Website