Calendar-based time management platform combining scheduling and time tracking in one visual timeline. HourStack allowed users to schedule tasks directly on a calendar interface, track time with timers or manual entry, and compare planned versus actual time. Note: HourStack team joined ClickUp in 2025.
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HourStack was a visual time management tool that combined scheduling and time tracking into one calendar-like interface. Users could schedule tasks directly on their timeline, allocating specific blocks of time for work.
HourStack presented an all-in-one visual calendar where users could:
Connected with popular tools:
Tasks from these platforms could be pulled into HourStack's central planning view.
The HourStack team joined ClickUp in 2025 and began integrating world-class scheduling and time tracking features into the ClickUp platform. This means HourStack's innovative approach to visual time management is being incorporated into ClickUp's comprehensive project management ecosystem.
HourStack pioneered the visual, calendar-first approach to time tracking where planning and tracking happened in the same interface. This eliminated the disconnect between scheduling tasks and recording actual time spent.
Users seeking similar visual time management capabilities can explore:
HourStack offered a free trial with paid plans starting at $12/month before the acquisition.
The platform's main innovation was treating time as a visual, spatial resource on a calendar rather than as entries in a list, making time management more intuitive and planning more integrated with tracking.