Like you, some of us are using an Android phone. Ease of use, not having to worry about "Jailbreaking" an apple phone and if like some of us, you travel overseas, well, enough said.
The #1 tip is to make sure you don't place the app with it's keen icon on the home screen of your phone. It can be put on page two or anywhere else, as sometimes, my kids insist on using a parents phone to make a call, and answering questions about "what's this?" can be taxing. So, first tip, move the app to the 2nd page.