Tinkersynth - Create and purchase unique generative art
Sortd - Rated the #1 App for Gmail
ArtSnacks - Birchbox for unique, high-quality art supplies
KanbanMail - A Kanban board for your emails.
Big Art - Discover street art
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.