Howbout vs Musubi

Howbout is a social planning and calendar app for coordinating time with friends, family, roommates, and other groups. Its shared calendar shows whether friends are free, busy, or possibly available on a proposed date. Plans include a name, place, time, RSVP details, and reminders, with a chat for messages, photos, videos, GIFs, tickets, and other information. You can share plans with Friends, Close Friends, or only yourself. Invitations and plan changes generate notifications, while reminders and home-screen widgets keep details visible. Howbout connects directly to Google Calendar and can sync through a phone’s native calendar, including Apple Calendar, Google Calendar, and Outlook. Events can be exported to the native calendar and shared with calendar apps when export is enabled. The app runs on Android and iOS. The Free plan costs nothing; Howbout+ adds premium customization and additional planning features, with prices varying by country and platform.

Musubi is a shared calendar that combines calendars, tasks, and people for everyday planning. Events can appear in multiple calendars, with one update reflected wherever they are shown. It connects with Google Calendar, Apple iCloud, Outlook, Microsoft 365, and compatible CalDAV services including Nextcloud, Fastmail, and Radicale. Synchronization works both ways where provider permissions allow, while read-only calendars remain read-only. Views cover day, week, month, and agenda formats, and personal pages control which calendars and items appear. Tasks sit beside events with status, priority, due dates, and web list or Kanban views. Android and iOS apps provide mobile access; Android adds agenda and month widgets, with reminders scheduled on the device. Musubi is open source under the MIT License and can be self-hosted with Docker Compose v2, a domain, and HTTPS. Hosted Musubi costs nothing during early access. The hosted app and primary database run in Germany.