UpNote - A beautiful and clean cross-platform app for notes organizer

Nifty - Manage projects, work, and communications in one place.

Notesnook - Notesnook is a simple and private note taking app that keeps your notes organized and synced on your phone, tablet and computer.

Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.

Note Board - Productivity app. Save information like a sticky notes.

Jira - The #1 software development tool used by agile teams. Jira Software is built for every member of your software team to plan, track, and release great software.