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Best Collaborative Calendar Apps

205+ iOS apps curated and reviewed

4.7 avg rating
20 free apps
Updated June 2026

TimeTree is the household name in collaborative calendar, but it's far from the only option. We track 205+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

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😊(86K ratings)
FreeAdsIn-App Purchases
#37in 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

A versatile shared calendar app with features for families, couples, and work schedules. Easily share calendars, set reminders, sync with other devices, and manage events with chats and to-do lists. Simplify time management and strengthen your connections with TimeTree! Visit the official website for more information: [TimeTree Official Website](https://timetreeapp.com/)

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😊(45K ratings)
FreeAdsIn-App Purchases
#24in 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

Discover a social calendar app where you can easily share schedules, make plans, see when friends are free, vote on preferences, and chat about events, all in one place. Organize your social life effortlessly with shared calendars, polls, countdowns, and more. Start connecting with friends today!

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
Teamup Calendar#3

Teamup Calendar by Teamup Solutions AG

The Shared Calendar for Groups
Worth Considering
💼 Business
4.7😊(1.5K 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

Teamup Calendar is a shared calendar application for groups that helps organize people, schedule work, and share events efficiently. It offers multiple sub-calendars, customizable fields, event attachments, and powerful timezone support. Visit https://www.teamup.com to get started and learn more.

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

More Collaborative Calendar apps to explore

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

Stay organized and manage your schedule seamlessly with our calendar application. Sync, schedule, and book appointments with ease. Download now and take control of your time!

📊 Productivity
(130K)
5
Cozi Family Organizer
Cozi Family Organizer
Cozi Family Organizer
Shared Calendar & To-Do Lists
Free

Stay organized with our family calendar app that helps you coordinate schedules, track events, and manage to-do lists all in one place. Simplify your family life and stay connected effortlessly - download now and start organizing!

📊 Productivity
(386K)
6
Shared Family Calendar: FamCal
Shared Family Calendar: FamCal
Shared Family Calendar: FamCal
Share Schedules, Lists & Notes
Free

Keep your family organized with our Shared Family Calendar app. Coordinate schedules, share lists, and stay connected easily. Download now to simplify your family life!

📊 Productivity
(27K)
7
Cupla: Couples Shared Calendar
Cupla: Couples Shared Calendar
Cupla: Couples Shared Calendar
Share Calendar App for Couples
Free

Introducing an ultimate relationship management app for busy couples that allows sharing calendars, to-dos, reminders, and lists, alongside organizing date nights. With features like a shared calendar, to-do lists, and date night planner, this app aims to reduce stress and strengthen relationships by enhancing communication and planning. Try it now for a more organized and connected life with your partner!

🌟 Lifestyle
(464)
8
Calendars: Schedule Planner
Calendars: Schedule Planner
Calendars: Schedule Planner
Reminder・Tasks Organizer・To Do
Free

Plan your day, schedule events, set reminders, and stay organized with this versatile calendar and planner app. Manage tasks, appointments, and to-do lists easily in one place. Download now and take control of your schedule!

📊 Productivity
(120K)
9
GroupCal - Shared Calendar
GroupCal - Shared Calendar
GroupCal - Shared Calendar
Family, Team & Work Planner
Free

GroupCal is a versatile shared calendar platform for groups, families, and businesses. Easily share calendars, invite members via phone numbers, receive real-time updates, and enjoy a unified view of all your calendars in one place. Join now for seamless event coordination!

📊 Productivity
(699)
10
One Calendar
One Calendar
One Calendar
All calendars in ONE place!
Free

Access all your calendars from Google, Outlook, iCloud, and more in one convenient place with easy-to-read overviews and management of appointments and events on all platforms. Simplify your calendar management today!

📊 Productivity
(20K)
11
minical - 일정 관리 캘린더 앱 (달력)
minical - 일정 관리 캘린더 앱 (달력)
minical - 일정 관리 캘린더 앱 (달력)
위젯 지원 및 공유 가능한 간단한 일정 플래너
Free

Plan your days efficiently with this powerful scheduling app. Keep track of your tasks, events, and appointments with ease. Stay organized and productive.Download now to stay on top of your daily activities.

📊 Productivity
(55K)
12
Any.do: To do list & Planner
Any.do: To do list & Planner
Any.do: To do list & Planner
Reminders, Calendar & Tasks
Free

This app is an all-in-one task manager that helps you stay organized, set reminders, create to-do lists, and collaborate with others. Stay on top of your tasks and increase productivity with this user-friendly app.

📊 Productivity
(50K)
13
TickTick:To-Do List & Calendar
TickTick:To-Do List & Calendar
TickTick:To-Do List & Calendar
Task remind, planner,countdown
Free

TickTick is a versatile task management app that helps you organize your life with to-do lists, reminders, and calendar integration. Stay on top of your tasks and boost your productivity with this all-in-one tool. Download now and start getting things done!

📊 Productivity
(43K)
14
Calendly Mobile
Calendly Mobile
Calendly Mobile
Schedule meetings with ease
Free

Schedule meetings with ease on-the-go with this mobile application that seamlessly integrates with the desktop version. Access upcoming meeting details, reschedule or cancel meetings, and join video calls directly from your phone. Stay organized and efficient with the power of scheduling in your pocket - download now!

💼 Business
(52K)
15
My Calendar: Planner Organizer
My Calendar: Planner Organizer
My Calendar: Planner Organizer
Easy to Use Calendar App
Free

A user-friendly calendar app with customizable features like background images, theme colors, and widgets. Easily manage your schedule, set reminders, lock your events with a passcode, and back up data. Stay organized and efficient with this practical tool.

📊 Productivity
(384)
16
Simple Calendar・Schedule app
Simple Calendar・Schedule app
Simple Calendar・Schedule app
simple and cool calendar app
Free

A simple and cool calendar app designed for those who prefer straightforward scheduling without complex features. With a focus on simplicity and a beautiful design, it offers an easy-to-use interface for managing appointments and tasks stress-free.

📊 Productivity
(1.9K)
17
Zoho Calendar
Zoho Calendar
Zoho Calendar
Online business calendar
Free

In a couple of sentences, the essence of the application and its functionality can be conveyed as follows: Zoho Calendar is a comprehensive online calendar app that helps you stay organized and manage your events seamlessly. With features like room booking, unified calendar views, event forwarding, and virtual meeting integration, Zoho Calendar is the perfect tool to streamline your personal and professional schedules.

📊 Productivity
(4)
18
Simple Calendar: ToDo Planner
Simple Calendar: ToDo Planner
Simple Calendar: ToDo Planner
Schedule list & day organizer
Free
$6.99 | 100% OFF

Stay organized and efficient with a user-friendly calendar and to-do list application that helps you manage your tasks and schedule effectively. Plan your day, set reminders, and stay on top of your commitments with ease. Download now to simplify your daily routine!

📊 Productivity
(6.4K)
19
Structured: Daily Planner Todo
Structured: Daily Planner Todo
Structured: Daily Planner Todo
Calendar, Reminder & To Do
Free

Organize your daily tasks with a comprehensive visual calendar designed to help you plan your day effectively. Stay on track and boost your productivity with this structured daily planner app. Start optimizing your schedule now!

📊 Productivity
(160K)
20
PocketLife Calendar
PocketLife Calendar
PocketLife Calendar
Calendar Organizer & Reminders
Free

PocketLife Calendar is a versatile calendar organizer that helps you stay organized and never miss an important event. Manage your schedule effectively with ease. Download now for effortless event planning!

📊 Productivity
(41K)

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