Big Art - Discover street art
Sortd - Rated the #1 App for Gmail
Hivemapper - Build maps that reveal changes 🌏
KanbanMail - A Kanban board for your emails.
Tinkersynth - Create and purchase unique generative 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.