I've published on Google Play a budget planner app - My Budget - in both free and paid versions (free version supported by ads). As I found other budget managers a little bit to complicated, I was thinking that there are people who don't need so many features, people who need only some simple tool to track their expenses and income, so I've created My Budget. So, if someone is interested, please check it and share your impression/suggestions. Thanks!
It can be downloaded from Google Play:
My Budget Free
My Budget (paid version)