Tasker - Tasker is an application for Android which performs Tasks (sets of Actions) based on Contexts...
Evernote - Bring your life's work together in one digital workspace. Evernote is the place to collect inspirational ideas, write meaningful words, and move your important projects forward.
AutomateIt - Automate Your Android!
Standard Notes - A safe place for your notes, thoughts, and life's work
LIama - LIama is a Location-Aware Mobile app that determines your location and helps you do lots of other stuff with ease.
Joplin - Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. The notes are searchable, tagged and modified either from the applications directly or from your own text editor.