OKRStudio - Connect Trello cards to OKRs. Manage OKRs inside of Trello
Xmind - Xmind is a brainstorming and mind mapping application.
OKRs.app - Reach your personal goals with OKRs
MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.
Weekdone - Market leader and innovator since 2013. Set structured quarterly goals, keep track of activities, and focus on getting real business results. Track weekly progress, provide feedback, and move everyone in a unified direction.
FeatureMap - FeatureMap story mapping, simple and effective realtime collaboration and collective intelligence tool.