While I spent a fair bit using app services (Uber, lime primarily), I've just thought about it and realised I'm a heavy mobile phone user but have spent < $10 in total on apps in the last 7 years of being an Android phone user. As a fellow app developer that makes me feel pretty guilty but there's always a free version of whatever I need and I don't play any games.

Is there any must have quality paid apps out there anybody suggests?