Simple OKR - Track, measure and manage OKRs
OKRs.app - Reach your personal goals with OKRs
Digital Toucan OKR for Jira - Collaborate around measurable goals to realize your ambitions.
Lernit - Define objectives, assess and train your team
OKRStudio - Connect Trello cards to OKRs. Manage OKRs inside of Trello
Objective Logistics - Create competitions for your waitstaff to increase sales