Tile - Track your lost items
Neat.run - Neat puts SaaS notifications in your menu bar. Streamline your code review and ship with ease. Preview, triage, and jump to issues in one click or keystroke.
The O - Never lose anything again
Gitify - GitHub Notifications on your desktop.
FoundIt! - Keep your things safe with self-printed QR codes
GitPigeon - GitHub notifications delivered to your Mac