Here's my main Android app, Offline Diary. It's a diary/note/list taking app. Personally, I use it to track my workouts, keep notes and reminders of things, make todo lists, and write down anything else I want to keep track of. It supports images, labels, lists, searching by text or label, themes and lots of other stuff.
https://play.google.com/store/apps/details?id=com.bitterware.offlinediary
