Best Collaborative Calendar Apps

250+ iOS apps curated and reviewed

4.6 avg rating
20 free apps
Updated October 2026

TimeTree is the household name in collaborative calendar, but it's far from the only option. We track 250+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top Collaborative Calendar Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1TimeTree: Shared CalendarTimeTree: Shared CalendarFree4.9★ (93K)YesYesOct 2026
2Howbout: shared calendarHowbout: shared calendarFree4.8★ (50K)NoYesOct 2026
3Teamup CalendarTeamup CalendarFree4.8★ (9.7K)NoNoOct 2026
4Google Calendar: Get OrganizedGoogle Calendar: Get OrganizedFree4.5★ (132K)NoYesOct 2026
5Cupla: Couples Shared CalendarCupla: Couples Shared CalendarFree4.7★ (2.3K)NoYesOct 2026
6GroupCal - Shared CalendarGroupCal - Shared CalendarFree4.7★ (810)NoYesOct 2026
7Simple Calendar・Schedule appSimple Calendar・Schedule appFree4.6★ (2.3K)YesNoOct 2026
8Lual: Calendar for FriendsLual: Calendar for FriendsFree5.0★ (2)NoNoOct 2026

Top Picks for Collaborative Calendar

TimeTree: Shared Calendar#1

TimeTree: Shared Calendar by TimeTree, Inc.

Make a Shared Calendar
Editor's Choice
📊 Productivity
4.9😊(93K ratings)
FreeAdsIn-App Purchases
#77in Productivity
TimeTree: Shared Calendar screenshot 1
TimeTree: Shared Calendar screenshot 2
TimeTree: Shared Calendar screenshot 3
TimeTree: Shared Calendar screenshot 4
TimeTree: Shared Calendar screenshot 5
TimeTree: Shared Calendar screenshot 6

This app allows users to create and share calendars with family, friends, or colleagues. It facilitates event planning, communication, and organization through shared schedules, photo albums, and to-do lists. Stay connected and manage your time effectively with this collaborative scheduling tool.

What We Love

  • 🚀 Easy to use
  • 👍 Shareable calendars
  • 💡 Customizable color coding
  • 🚀 Efficient organization
  • 👍 Helpful for busy families
  • 👍 Great for long-distance relationships
  • 👍 Useful for coordinating schedules
  • 👍 Keeps everyone on the same page

Room to Improve

  • 🐛 Occasional sync issues
  • 🐛 Laggy performance
  • 🐛 Confusing time zone changes
  • 🐛 Limited customization options
  • 🐛 Difficulty importing/exporting data
Howbout: shared calendar#2

Howbout: shared calendar by Howbout Ltd.

For friends, family & couples
Strong Contender
🌐 Social Networking
4.8😊(50K ratings)
FreeIn-App Purchases
#54in Social Networking
Howbout: shared calendar screenshot 1
Howbout: shared calendar screenshot 2
Howbout: shared calendar screenshot 3
Howbout: shared calendar screenshot 4
Howbout: shared calendar screenshot 5
Howbout: shared calendar screenshot 6

This app simplifies social planning by allowing friends to share calendars, coordinate events, and see each other's availability. It helps move plans out of group chats and into a centralized, customizable space with integrated communication features.

What We Love

  • 👍 Easy to use and intuitive
  • 🚀 Helps with planning and organizing
  • 💡 Useful features like polls, countdowns, and event chats
  • 🤝 Facilitates sharing calendars and coordinating with friends

Room to Improve

  • 🐛 Occasional glitches and bugs
  • 🔀 Difficulty syncing with other calendars
  • 📢 Overwhelming notifications
  • 🔒 Forced to add friends to use the app
Teamup Calendar#3

Teamup Calendar by Teamup Solutions AG

The Shared Calendar for Groups
Worth Considering
💼 Business
4.8😊(9.7K ratings)
Free
Teamup Calendar screenshot 1
Teamup Calendar screenshot 2
Teamup Calendar screenshot 3
Teamup Calendar screenshot 4
Teamup Calendar screenshot 5
Teamup Calendar screenshot 6

This app facilitates efficient information sharing and task completion for groups through a shared calendar. It allows for organizing people, scheduling work, managing availability, and securely sharing events with teams or external parties.

What We Love

  • 👍 Easy to use
  • 👍 Intuitive interface
  • 👍 Helpful for organizing schedules
  • 👍 Reliable and efficient
  • 👍 Great for small businesses and teams
  • 👍 Seamless syncing across devices

Room to Improve

  • 🐛 App crashes and freezes
  • 🐛 Glitches with editing and deleting events
  • 🐛 Inconsistent performance between mobile and desktop versions
  • 🔍 Limited functionality in mobile app compared to web version
  • 📱 Lack of push notifications and reminders

More Collaborative Calendar apps to explore

FAQ about Collaborative Calendar

What are the best collaborative calendar apps for iPhone?
TimeTree: Shared Calendar tops our collaborative calendar apps ranking as of October 2026, with a 4.9-star average from 93K App Store ratings, and it's free to download.
Yes — 20 of the top collaborative calendar apps we rank are free to download, including TimeTree: Shared Calendar and Howbout: shared calendar.
TimeTree: Shared Calendar shows ads and offers in-app purchases, according to its App Store listing as of October 2026.
We track 250+ collaborative calendar apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.

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