Best Microsoft Outlook Calendar Apps

199+ iOS apps curated and reviewed

4.7 avg rating
20 free apps
Updated June 2026

With an average user rating of 4.7★, the microsoft outlook calendar category is one of the App Store's strongest. Browse all 199+ apps we track, sorted so the most loved ones surface first.

Top Picks for Microsoft Outlook Calendar

Microsoft Outlook#1

Microsoft Outlook by Microsoft Corporation

Secure Email, Calendar & Files
Editor's Choice
📊 Productivity
4.8😐(9M ratings)
FreeAdsIn-App Purchases
#9in Productivity
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Consolidate all your email accounts and calendars into one streamlined application. Manage your inbox, schedule meetings, and access files from various cloud services. Enhance productivity with AI-powered writing assistance and smart inbox features.

What We Love

  • 🚀 Great for corporate email
  • 👍 Customizable and user-friendly
  • 🚀 Seamless integration with Microsoft 365
  • 👍 Solid email and calendar functionality

Room to Improve

  • 🐛 Buggy and unstable at times
  • 🔋 High battery consumption
  • 🔒 Security issues with password resets
Microsoft 365 Copilot#2

Microsoft 365 Copilot by Microsoft Corporation

AI-powered productivity
Strong Contender
📊 Productivity
4.7😐(1.3M ratings)
FreeAdsIn-App Purchases
#27in Productivity
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This AI-powered app helps you be more productive at work. Chat with an AI assistant to create content, manage projects, find files, and learn new concepts. It offers voice interaction and expert insights for various tasks.

What We Love

  • 🚀 Seamless integration of Office apps
  • 🔒 Secure cloud storage with OneDrive
  • 👍 Convenient all-in-one productivity solution
  • 🚀 Great for on-the-go work and collaboration

Room to Improve

  • 🐛 Inconsistent file saving and syncing
  • 🔍 Confusing file management and navigation
  • 🔍 Limited functionality compared to desktop Office
Microsoft To Do#3

Microsoft To Do by Microsoft Corporation

Capture Tasks & Set Reminders
Worth Considering
📊 Productivity
4.7😐(257K ratings)
Free
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Manage your daily tasks and create various lists to stay organized. This app offers personalized daily planning tools and intelligent suggestions to help you focus on what matters. Collaborate with others on shared lists and access your tasks across all your devices.

What We Love

  • 🚀 Lightning-fast syncing
  • 👍 Visually appealing design
  • 📅 Helpful 'My Day' feature
  • 💡 Customizable backgrounds

Room to Improve

  • 🐛 Frequent crashes and bugs
  • 🔀 Difficulty rearranging tasks
  • 🗓️ Lack of calendar view

More Microsoft Outlook Calendar apps to explore

4
Calendar
Calendar
Calendar
by Apple Inc.
Free

Organize your entire schedule in one place. View events from multiple accounts, manage tasks, and plan gatherings with others. Stay on top of appointments, holidays, and birthdays with customizable views and shared calendars.

Unified schedule viewEvent creation and editingTask management integration
📊 Productivity
(1.5M)
free
5
One Calendar
One Calendar
One Calendar
All calendars in ONE place!
Free

Consolidate all your digital calendars into a single, easy-to-read view. Manage appointments, events, and birthdays from various providers like Google, Outlook, iCloud, and more, all within one application.

Integrates multiple calendar providersEasy-to-read overviewManage appointments and events
📊 Productivity
(20K)
free with in-app purchases
6
Microsoft OneDrive
Microsoft OneDrive
Microsoft OneDrive
File & photo cloud storage
Free

Securely store, back up, and sync your photos, videos, and files across all your devices. Share content with others, scan documents, and access files offline. Offers free storage with options to upgrade for more space and premium features.

Automatic photo and video backupFile sharing and managementDocument scanning and editing
📊 Productivity
(486K)
free with in-app purchases
7
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
8
Microsoft Teams
Microsoft Teams
Microsoft Teams
Call. Chat. Collaborate
Free

This app brings people together for community activities or work projects. It offers integrated chat, events, meetings, storage, and task management. Connect, collaborate, and get things done securely in one place.

Community and team organization1-on-1 and group chatSecure audio and video calls
💼 Business
(3.4M)
free
9
Calendars: Schedule Planner
Calendars: Schedule Planner
Calendars: Schedule Planner
Reminder・Tasks Organizer・To Do
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
(120K)
free with in-app purchases
10
Microsoft Planner
Microsoft Planner
Microsoft Planner
by Microsoft Corporation
Free

Organize teamwork visually with a simple, interactive board. Assign tasks, track progress, and collaborate with your team through integrated conversations and file sharing. Stay updated on all your tasks across different plans and devices.

Visual task boardsTask assignment and trackingTeam collaboration and chat
📊 Productivity
(13K)
free
11
Microsoft SharePoint
Microsoft SharePoint
Microsoft SharePoint
by Microsoft Corporation
Free

Access organizational files, news, and colleagues on the go. This app uses AI to personalize your experience, helping you find expertise and content quickly. Stay connected with your team and collaborate effectively from anywhere.

Personalized file and news discoveryAI-powered search for content and expertiseAccess team and communication sites
📊 Productivity
(137K)
free
12
Calendar · Planner & Reminders
Calendar · Planner & Reminders
Calendar · Planner & Reminders
Planner Organizer & Agenda
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
13
Fantastical Calendar
Fantastical Calendar
Fantastical Calendar
Reminders & Todo List
Free

This powerful calendar and task management app offers intuitive natural language input for event creation, multiple calendar views, and robust task integration. It provides weather forecasts and advanced features like meeting polls and video conferencing integration for premium users.

Natural language event and task creationMultiple calendar views (day, week, month, year)Integrated task management (Todoist, Google Tasks)
📊 Productivity
(23K)
freemium
14
Microsoft 365 Admin
Microsoft 365 Admin
Microsoft 365 Admin
by Microsoft Corporation
Free

Manage your Microsoft 365 or Office 365 business subscription from your mobile device. Add users, reset passwords, manage devices, and monitor service health. Stay informed with critical notifications and support requests on the go.

Manage users and groupsReset passwordsManage devices
📊 Productivity
(5.8K)
free
15
24me: Calendar・Planner & To Do
24me: Calendar・Planner & To Do
24me: Calendar・Planner & To Do
Reminders, Schedule, Organizer
Free

This app acts as a smart personal assistant, consolidating your calendar, to-do lists, notes, and personal accounts into one unified platform. It streamlines daily management with features like voice commands, smart reminders, and email-to-task conversion, helping you stay organized and productive.

Unified calendar and plannerSmart task manager and to-do listSimple notes and lists
📊 Productivity
(6.7K)
free with in-app purchases
16
TimeTree: Shared Calendar
TimeTree: Shared Calendar
TimeTree: Shared Calendar
Make a Shared Calendar
Free

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.

Shared calendars for groupsEvent notifications and remindersSync with device calendars
📊 Productivity
(87K)
free with in-app purchases
17
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
(8.8K)
freemium
18
Spark Mail: AI Email Assistant
Spark Mail: AI Email Assistant
Spark Mail: AI Email Assistant
Smart Inbox & Mail Assistant
Free

Streamline your email and calendar management with an AI-powered assistant. Organize multiple accounts, declutter your inbox with smart sorting, and use AI to draft replies, summarize threads, and manage your schedule efficiently.

Unified inbox for multiple email accountsAI-powered email summarization and draftingSmart Inbox for prioritizing emails
📊 Productivity
(82K)
free with in-app purchases
19
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
20
Mail: Email, Cloud, Calendar
Mail: Email, Cloud, Calendar
Mail: Email, Cloud, Calendar
Tackle your inbox email!
Free

This app consolidates email, calendar, notes, and cloud storage into a single platform. It offers AI-powered email summarization, vacation planning, customizable notifications, and translation features. Manage multiple email accounts and organize newsletters efficiently.

Unified inbox for multiple email accountsAI-powered email summarizationSmart calendar with vacation planner
📊 Productivity
(60K)
free with in-app purchases