2021-09-21 00:00:00 *THE CLEANEST, SIMPLEST, SMALLEST TIP CALCULATOR FOR ANDROID, 100% FREE AND OPEN-SOURCE* Tippy is a simple tip calculator built for educational purposes, 100% free and open-source. After you enter a base amount and a tip percentage, the app will calculate the tip and total for you. We also implement a tip percentage animation and a footer to make our app more unique. This is the perfect first app to build if you're new to Android. Checkout the step by step tutorial on my YouTube channel.