Finale - Finale, the world standard for music notation software, lets you compose, arrange, notate, and print engraver-quality sheet music.
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.
Mythos - Mythos is an Action and MMORPG video game published by Hanbit Soft and developed by Flagship Studios.
Nifty - Manage projects, work, and communications in one place.
Huboard - HuBoard is built from the ground up using the GitHub public API.
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.