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.
Habit List - Create good habits and break bad ones with the app that keeps you focused.
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.
Momentum - Agile goal and performance management
Google Keep - Capture notes, share them with others, and access them from your computer, phone or tablet. Free with a Google account.
everyday.app - Every day, it gets a little easier. But you gotta do it every day, that's the hard part.