OKRs.app - Reach your personal goals with OKRs
vym - VYM (View Your Mind) is a tool to generate and manipulate maps which show your thoughts.
Simple OKR - Track, measure and manage OKRs
Freeplane - Freeplane is a powerful and free software for building mind maps.
Focus - New Tab page that gives you a moment of calm and inspires you to be more productive.
SuperNotecard - Introducing SuperNotecard. SuperNotecard is an online writing tool that features virtual notecards to help arrange facts or scenes, track details, organize paragraphs, and clarify your composition process.