Cron - Cron Calendar.

MeetNotes - Increase Productivity with Meeting Notes Tool. More effective minutes, Prepare Agenda, Collaborative Notes & Action Items.

zcal - zcal is the fastest way to schedule every meeting for Free and make it personal.

Chili Piper - Chili Piper is an intelligent calendar for Sales teams, to book their own meetings or set appointments for other teams.

Cal.com - Cal.com (formerly Calendso) is the open source Calendly alternative.

Geekbot - Discover how to organise asynchronous stand up meetings in Slack and keep your team synced using Geekbot. Start your free trial today!