title: The Best Shared Calendar App Depends on Who You're Sharing With
url: https://boardspy.site/compare/best-shared-calendar-app/
type: Article
dateModified: 2026-10-15
publisher: BoardSpy
quick_answer: Quick answer: There isn't one best shared calendar app, because "sharing a calendar" means five different jobs. Two people → Cupla. A household → Cozi. Several separate groups → TimeTree. Already living in Google → Google Calendar. One of you works shifts and the commute is the problem → BoardSpy.
primary_keyword: best shared calendar app
keywords[6]{term}:
  best shared calendar app
  good shared calendar apps
  apps to share calendar
  best shareable calendar
  shared calander app
  calendar app share iphone android
faqs[6]{q,a}:
  What is the best shared calendar app?,There isn't a single one. For two people, Cupla. For a household with kids, Cozi. For keeping several groups separate, TimeTree. If everyone's already in Google, Google Calendar is free and takes a minute. If one of you works a shift rotation and the commute is the problem, BoardSpy.
  What is the best free shared calendar app?,TimeTree and Cupla have the most complete free tiers — TimeTree gives you multiple shared calendars, comments, photos and imports at no cost, and Cupla puts every feature on free with a limited time window. Google Calendar is free outright if you're already in Google.
  Can I share a calendar between iPhone and Android?,Yes, with a third-party app. Cupla, TimeTree, Cozi and BoardSpy all run on both. Sharing an Apple Calendar directly requires everyone to be on Apple devices, which is the usual reason mixed-phone households end up on something else.
  How many people can share one calendar?,It varies and it's often not published. Cupla is built for two. BoardSpy's free shared calendar is two including you, with a third requiring Pro. Cozi and TimeTree don't state a cap on their own pages. Check before you build a routine around one.
  Do shared calendar apps sync with Google Calendar?,Most read from it; fewer write back to it. Cupla syncs two ways with Google, Apple and Outlook. BoardSpy mirrors Google events into a shared calendar read-only and never writes to your Google calendar. The difference matters if you want events created in the app to appear in the calendar you already use.
  Will a shared calendar app tell me when to leave?,Almost none will. They show what's scheduled and remind you at a time you set. BoardSpy is the exception on this list: it times the alarm to the live traffic drive time on your route plus a five-minute buffer, so the leave-by time changes as the road does.
citations[4]{name,url}:
  Cupla — Definition, features and access (facts page),https://cupla.app/facts/
  Cozi — Cozi Gold,https://www.cozi.com/cozi-gold/
  TimeTree Help — How much does TimeTree cost?,https://support.timetreeapp.com/hc/en-us/articles/360000290802-How-much-does-TimeTree-cost
  TimeTree — TimeTree Premium announcement (April 2022),https://timetreeapp.com/intl/en/newsroom/2022-04-19/premium
internal_links[5]{label,url}:
  Coordinate with one partner,https://boardspy.site/compare/shared-calendar-app-for-couples/
  a family organiser,https://boardspy.site/compare/best-family-calendar-app/
  sharing a calendar,https://boardspy.site/blog/how-to-share-a-google-calendar/
  Shared iCloud calendars,https://boardspy.site/blog/how-to-share-an-iphone-calendar/
  shift rotations,https://boardspy.site/compare/shift-work-calendar-app/