Xmind - Xmind is a brainstorming and mind mapping application.

Meetingbird - Powerful meeting scheduling and notes — right in your calendar

MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.

Standuply - Run daily standup meetings and track your metrics in Slack

MindManager - With MindManager, flexible mind maps promote freeform thinking and quick organization of ideas, so creativity and productivity can live in harmony.

Navigator - The Teamwork assistant — run great meetings without busywork