Best Collaborative Calendar Apps

230+ iOS apps curated and reviewed

4.7 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 230+ 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★ (88K)YesYesJul 2026
2Howbout: shared calendarHowbout: shared calendarFree4.8★ (47K)YesYesJul 2026
3N Calendar - Planner & AgendaN Calendar - Planner & AgendaFree4.7★ (103)YesYesJul 2026
4Saturn CalendarSaturn CalendarFree4.7★ (68K)NoNoJul 2026
5Teamup CalendarTeamup CalendarFree4.8★ (9.1K)NoNoJul 2026
6もくもくちゃんカレンダーもくもくちゃんカレンダーFree4.7★ (74)YesNoJul 2026
7Календарь: всё под контролемКалендарь: всё под контролемFree4.5★ (131K)NoYesJul 2026
8FamilyWall: Family OrganizerFamilyWall: Family OrganizerFree4.8★ (20K)YesYesJul 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😊(88K ratings)
FreeAdsIn-App Purchases
#48in 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
Howbout: shared calendar#2

Howbout: shared calendar by Howbout Ltd.

Social calendar for friends
Strong Contender
🌐 Social Networking
4.8😊(47K ratings)
FreeAdsIn-App Purchases
#32in 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
N Calendar - Planner & Agenda#3

N Calendar - Planner & Agenda by Komorebi Inc.

Clear and Calm Calendar App
Worth Considering
📊 Productivity
4.7(103 ratings)
FreeAdsIn-App Purchases
N Calendar - Planner & Agenda screenshot 1
N Calendar - Planner & Agenda screenshot 2
N Calendar - Planner & Agenda screenshot 3
N Calendar - Planner & Agenda screenshot 4
N Calendar - Planner & Agenda screenshot 5
N Calendar - Planner & Agenda screenshot 6

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.

More Collaborative Calendar apps to explore

4
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
5
Teamup Calendar
Teamup Calendar
Teamup Calendar
The Shared Calendar for Groups
Free

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.

View and update multiple sub-calendarsCentrally manage calendar via browserGranular access permissions
💼 Business
(9.1K)
freemium
6
もくもくちゃんカレンダー
もくもくちゃんカレンダー
もくもくちゃんカレンダー
by Shibapp LLC
Free
📊 Productivity
(74)
7
Календарь: всё под контролем
Календарь: всё под контролем
Календарь: всё под контролем
Легко планируйте все свои дела
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
8
FamilyWall: Family Organizer
FamilyWall: Family Organizer
FamilyWall: Family Organizer
The game changer for families
Free

This app helps families organize their lives with shared calendars, lists, and messaging. It offers features like meal planning, document sharing, and expense tracking to streamline family coordination and communication.

Shared family calendarCollaborative shopping and task listsRecipe storage and sharing
📊 Productivity
(20K)
free with in-app purchases
9
Cupla: Shared Couples Calendar
Cupla: Shared Couples Calendar
Cupla: Shared Couples Calendar
Share Calendar App for Couples
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
(2.1K)
free with in-app purchases
10
StampCalendar DX
StampCalendar DX
StampCalendar DX
Cute calendar for girls
Free

Organize your daily schedule with cute stamps and memos. Customize your calendar view and rearrange stamps for easy access. Offers expanded cloud backup, unlimited themes, and an ad-free experience with a special plan.

Schedule management with stampsDrag-and-drop stamp placementCustomizable stamp order
🌟 Lifestyle
(9.4K)
free with in-app purchases
11
Cozi Family Organizer
Cozi Family Organizer
Cozi Family Organizer
Shared Calendar & To-Do Lists
Free

This app helps families organize their busy lives with a shared calendar, to-do lists, and recipe box. It keeps everyone on the same page for appointments, shopping, and meal planning, accessible from any device.

Shared family calendarColor-coded schedulingReminders and agenda emails
📊 Productivity
(386K)
free with in-app purchases
12
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
13
Any.do: To do list & Planner
Any.do: To do list & Planner
Any.do: To do list & Planner
Reminders, Calendar & Tasks
Free

Organize your life with a comprehensive task list, calendar, and reminder app. Seamlessly sync across devices, set location-based or recurring reminders, and collaborate on shared lists. Boost productivity with intuitive task management and daily planning features.

Seamless cross-device syncingLocation-based and recurring remindersShared lists and task assignment
📊 Productivity
(50K)
free with in-app purchases
14
Artful Agenda
Artful Agenda
Artful Agenda
Plan, sync & organize in style
Free

This app offers a stylish and personalized way to manage your schedule, tasks, and personal goals. Syncs with major calendar platforms and allows for creative customization of your planner pages, event colors, and fonts. It also includes features for meal planning, water tracking, and productivity tools.

Syncs with Google, Apple, and Outlook calendarsPersonalize with cover designs and stickersCustomize event colors and handwriting fonts
📊 Productivity
(15K)
subscription
15
Calendars: 스케줄 리마인더 & 타임플래너
Calendars: 스케줄 리마인더 & 타임플래너
Calendars: 스케줄 리마인더 & 타임플래너
일정관리 및 알람: 스케줄러, 투두리스트, 켈린더
Free

This app combines a calendar, task manager, daily planner, and habit tracker. It helps users plan their day, build habits, boost productivity, and stay organized with seamless syncing across all Apple devices. Features include event creation, to-do list management, natural language input, and integration with popular meeting platforms.

Calendar, task, and habit managementDaily, weekly, and monthly viewsNatural language event creation
📊 Productivity
(121K)
free with in-app purchases
16
TickTick:To-Do List & Calendar
TickTick:To-Do List & Calendar
TickTick:To-Do List & Calendar
Task remind, planner,countdown
Free

This app helps you manage tasks, schedule events, and build habits. It offers cross-device synchronization, multiple reminders, and collaboration features. Stay organized and boost productivity with its comprehensive planning tools.

Cross-device task synchronizationMultiple reminders and flexible schedulingCalendar views and integration
📊 Productivity
(44K)
freemium
17
minical - Календарь и Планер
minical - Календарь и Планер
minical - Календарь и Планер
Виджет, общее расписание легко
Free

This app offers a minimalist and intuitive way to manage your schedule. View events at a glance with home and lock screen widgets, color-code them for easy distinction, and quickly edit them with smart suggestions. Stay organized with customizable notifications and cloud syncing.

Minimalist designHome & lock screen widgetsEvent color-coding
📊 Productivity
(5.5K)
free with in-app purchases
18
Calendly Mobile
Calendly Mobile
Calendly Mobile
Schedule meetings with ease
Free

This app allows users to schedule meetings on the go, mirroring the functionality of its desktop counterpart. Easily share scheduling links, view upcoming meeting details, and manage appointments by rescheduling or canceling them directly from your mobile device.

Schedule meetings on-the-goCopy and share scheduling linksView upcoming meeting details
💼 Business
(54K)
freemium
19
GroupCal - Shared Calendar
GroupCal - Shared Calendar
GroupCal - Shared Calendar
Family, Team & Work Planner
Free

Easily create and share calendars for families, teams, or any community. Invite members via phone number or link and receive real-time updates on events. Integrates with existing calendars for a unified view.

Create multiple shared calendarsInvite via phone number or linkReal-time event updates and notifications
📊 Productivity
(751)
free with in-app purchases
20
Week Calendar - Smart Planner
Week Calendar - Smart Planner
Week Calendar - Smart Planner
Sync Agenda Tasks & Reminders
Free

This app offers a highly customizable calendar experience with multiple view options and automation tools. It allows for easy event management, integration with popular calendar services, and includes features like weather forecasts and calendar insights. An optional Pro version unlocks additional widgets and features.

Customizable calendar views (Day, Agenda, Month, Year)Event automation and templatesDrag-and-drop event rescheduling
📊 Productivity
(10K)
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 88K 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 July 2026.
We track 230+ 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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