Things - Things is an easy to use task manager.
UpNote - A beautiful and clean cross-platform app for notes organizer
Everlist Task Manager - Groceries, trips, errands, and daily todos managed simply. get your tasks under lovely control.
Notesnook - Notesnook is a simple and private note taking app that keeps your notes organized and synced on your phone, tablet and computer.
Llama Life - Say goodbye to never-ending lists, and hello to daily bliss
todoZero - A powerful to-do and note app for busy people.