Best Collaborative Calendar Apps

250+ iOS apps curated and reviewed

4.5 avg rating
20 free apps
Updated July 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 (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1TimeTree: Shared CalendarTimeTree: Shared CalendarFree4.9★ (89K)YesYesAug 2026
2Teamup CalendarTeamup CalendarFree4.8★ (9.2K)NoNoAug 2026
3Howbout: shared calendarHowbout: shared calendarFree4.8★ (48K)NoYesAug 2026
4Google Calendar: Get OrganizedGoogle Calendar: Get OrganizedFree4.5★ (131K)NoYesAug 2026
5N Calendar - Planner & AgendaN Calendar - Planner & AgendaFree4.7★ (103)YesYesAug 2026
6Chouchou Calendar | Cute VibesChouchou Calendar | Cute VibesFree4.8★ (638)YesYesAug 2026
7Saturn CalendarSaturn CalendarFree4.7★ (68K)NoNoAug 2026
8Cupla: Shared Couples CalendarCupla: Shared Couples CalendarFree4.7★ (2.2K)NoYesAug 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😊(89K ratings)
FreeAdsIn-App Purchases
#43in 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

Room to Improve

  • 🐛 Occasional sync issues
  • 🐛 Laggy performance
  • 🐛 Confusing time zone changes
Teamup Calendar#2

Teamup Calendar by Teamup Solutions AG

The Shared Calendar for Groups
Strong Contender
💼 Business
4.8😊(9.2K 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

Room to Improve

  • 🐛 App crashes and freezes
  • 🐛 Glitches with editing and deleting events
  • 🐛 Inconsistent performance between mobile and desktop versions
Howbout: shared calendar#3

Howbout: shared calendar by Howbout Ltd.

For friends, family & couples
Worth Considering
🌐 Social Networking
4.8😊(48K ratings)
FreeIn-App Purchases
#30in 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

More Collaborative Calendar apps to explore

4
Google Calendar: Get Organized
Google Calendar: Get Organized
Google Calendar: Get Organized
Easily plan & schedule
Free

This official app helps you manage your schedule and stay organized. It automatically adds events from Gmail, syncs across devices, and allows for shared calendars. You can also create tasks, customize views, and integrate with Google Meet for collaboration.

Automatic event import from GmailCross-device synchronizationShared calendars for collaboration
📊 Productivity
(131K)
free with in-app purchases
5
N Calendar - Planner & Agenda
N Calendar - Planner & Agenda
N Calendar - Planner & Agenda
Clear and Calm Calendar App
Free

A minimalist calendar app offering a simple, account-free planning experience. Customize with themes, adjust font sizes, and color-code events for clear organization. Secure your schedule with a passcode lock.

Account-free operation15 theme colors6 widget sizes
📊 Productivity
(103)
free with in-app purchases
6
Chouchou Calendar | Cute Vibes
Chouchou Calendar | Cute Vibes
Chouchou Calendar | Cute Vibes
Aesthetic & Simple Planner
Free

Organize your life with a stylish and intuitive calendar. Color-code events, customize backgrounds, and manage notes with ease. Enjoy flexible scheduling and personalized design options.

Color-coded eventsCustomizable backgrounds and fontsIntuitive drag-and-drop interface
📊 Productivity
(638)
free with in-app purchases
7
Saturn Calendar
Saturn Calendar
Saturn Calendar
Manage and share your time
Free

This app is designed for students to manage complex school schedules, including rotating periods and group events. It simplifies planning with friends and classmates, allowing users to share schedules and coordinate activities easily. Stay organized for high school and college with features tailored to student life.

Rotating period supportBlock schedule managementSocial schedule sharing
📊 Productivity
(68K)
free
8
Cupla: Shared Couples Calendar
Cupla: Shared Couples Calendar
Cupla: Shared Couples Calendar
Plan Dates, Tasks & Reminders
Free

This app helps couples organize their lives and strengthen their relationship by syncing calendars, managing shared tasks, and planning future activities. It aims to reduce stress and increase quality time spent together.

Shared calendar syncingShared to-do lists and tasksWishlist creation and sharing
🌟 Lifestyle
(2.2K)
free with in-app purchases
9
GRUP: Shared Calendar & Events
GRUP: Shared Calendar & Events
GRUP: Shared Calendar & Events
Group & family event planner
Free
📊 Productivity
(0)
10
Calendar · Planner & Reminders
Calendar · Planner & Reminders
Calendar · Planner & Reminders
Tasks, Agenda & To Do List AI
Free

This app offers a streamlined calendar experience with beautiful, intuitive views of your schedule. It unifies events and reminders, allows for quick natural language event entry, and provides contact history. It supports major calendar services and offers premium features through subscription.

Intuitive day and month viewsUnified events and remindersNatural language event entry
📊 Productivity
(59K)
free with in-app purchases
11
HiCal - Collaborative Calendar
HiCal - Collaborative Calendar
HiCal - Collaborative Calendar
Collaborative Calendar
Free

This app facilitates collaborative event planning and scheduling for groups. Share timetables, receive real-time updates on changes, and communicate via comments. Ideal for students, project teams, and organizations to stay synchronized.

Group event schedulingReal-time push notificationsEvent comments and discussion
📊 Productivity
(23)
free
12
Yearly Calendar
Yearly Calendar
Yearly Calendar
by Slower Ltd
Free
📊 Productivity
(0)
13
Rata - Shared Calendar
Rata - Shared Calendar
Rata - Shared Calendar
Family, Couple & Team Calendar
Free
📊 Productivity
(0)
14
Tiny Calendar: Planner & Tasks
Tiny Calendar: Planner & Tasks
Tiny Calendar: Planner & Tasks
Agenda, Organizer & Reminders
Free

This intuitive calendar app syncs with your existing calendars, offering powerful event creation and management tools. Access your schedule offline, set advanced reminders, and view your events in multiple formats on your iPhone, iPad, and Apple Watch.

Natural language input for event creationDrag and drop event editingSyncs with Google Calendar and iOS local calendars
📊 Productivity
(21K)
subscription
15
Shared Family Calendar: FamCal
Shared Family Calendar: FamCal
Shared Family Calendar: FamCal
Share Schedules & To Do Lists
Free

This app helps families stay organized by sharing schedules, tasks, lists, and notes in one central location. It allows for easy event management, collaborative list creation, and memo sharing to keep everyone connected and informed.

Shared family calendarTask assignment and listsFamily memos and notes
📊 Productivity
(27K)
free with in-app purchases
16
Calendar App- Schedule Planner
Calendar App- Schedule Planner
Calendar App- Schedule Planner
Plan Your Day, Week & Life
Free
📊 Productivity
(0)
17
SeeYou Calendar
SeeYou Calendar
SeeYou Calendar
by Seeyou Calendar
Free
📊 Productivity
(0)
18
CalPal Calendar
CalPal Calendar
CalPal Calendar
Simple scheduling, done right
Free
📊 Productivity
(0)
19
Houseful: Shared Calendar
Houseful: Shared Calendar
Houseful: Shared Calendar
Your household, in sync
Free
📊 Productivity
(0)
20
Calendar - 2026
Calendar - 2026
Calendar - 2026
2026 Calendar Planner,Reminder
Free

This daily planner and reminder app helps you organize tasks, meetings, and events with customizable views and notifications. It offers to-do lists, checklists, and the ability to add locations and notes to your schedule.

Daily to-do listsMultiple calendar views (day, week, month, year)Notification reminders
📊 Productivity
(5)
free with in-app purchases

FAQ about Collaborative Calendar

What are the best collaborative calendar apps for iPhone?
TimeTree: Shared Calendar tops our collaborative calendar apps ranking as of July 2026, with a 4.9-star average from 89K 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 Teamup Calendar.
TimeTree: Shared Calendar shows ads and offers in-app purchases, according to its App Store listing as of July 2026.
We track 250+ collaborative calendar apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
TimeTree is a shared calendar application designed for families, couples, work groups, and friends. It allows users to create and share calendars, plan events, and communicate about them within the app. It helps solve time management issues and keeps everyone in a group informed about schedules and important dates.
Key features include easy calendar sharing for various groups, notifications and reminders for events and updates, synchronization with device calendars like Google Calendar, shared photo albums, memo and to-do lists, chat functionality within events, and a web version for browser access. It also supports multiple calendars and widgets for quick schedule viewing.

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