OneCalendar
onecalendar.nlView and share appointments from multiple calendar providers in one cross-device app.
View and share appointments from multiple calendar providers in one cross-device app.
A budget calendar that projects balances from scheduled bills and income
Run a health practice from a calendar that connects patient records, online bookings, and reminders.
Visual team time tracking with calendar timesheets, project budgets, and team reporting.
Self-host a tag-based time tracker with calendar and dashboard views.
Add event calendars, sharing, and availability checks to a Nextcloud workspace.
Self-host an appointment booking page and team calendar, or use the project’s managed hosting.
Bring work and personal calendars together, create events in natural language, and share bookable openings.
A personal task timer with calendar logs, goal reports, and exports for reviewing where time goes.
Publish a booking page where clients can choose services and available appointment times.
Move between a live timer, a drag-and-drop calendar and a weekly timesheet.
Share group calendars so family, school, or hobby plans stay visible to everyone invited.
Personal finance registers with a bill calendar and offline option
An Android notepad for colored text memos, checklists, reminders, and calendar notes.
Visual social scheduling with CSV batches and a reviewable content calendar
Track projects across spreadsheet, Kanban, Gantt, and calendar views with contextual team updates.
Activity records, route tools and training comparisons
Desktop analysis of cycling and endurance training data
Calisthenics training with technique videos and equipment-aware plans
Multisport training fitted into available time slots and revised after sessions
Fitness workouts with a paid adaptive Coach for changing schedules and equipment
Share booking links with calendar sync, availability controls, and timezone-aware scheduling.
Share scheduling links, polls, and team availability with calendar conflict checks.
A local-first macOS outliner that combines linked notes, tasks, calendar views, and deep-work tools.