Boardly - A minimalistic planning board for your projects
Google Calendar - Spend less time managing your day & more time enjoying it
Corrello - Dashboards for agile teams using Trello
Mixmax Calendar - The fastest way to schedule meetings with anyone, anywhere
Planyway - Visual project management for Jira and Trello: manage resources, build project roadmaps, use time tracking.
Sunsama - Calendar and scheduling for teams