Best Outlook Calendar Apps

249+ iOS apps curated and reviewed

4.8 avg rating
18 free apps
Updated September 2026

With an average user rating of 4.8★, the outlook calendar category is one of the App Store's strongest. Browse all 249+ apps we track, sorted so the most loved ones surface first.

Compare top Outlook Calendar Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Microsoft OutlookMicrosoft OutlookFree4.8★ (9.2M)YesYesSep 2026
2Google Calendar: Get OrganizedGoogle Calendar: Get OrganizedFree4.5★ (132K)NoYesSep 2026
3Microsoft To DoMicrosoft To DoFree4.7★ (265K)NoNoSep 2026
4One CalendarOne CalendarFree4.8★ (21K)NoYesSep 2026
5CalendarCalendarFree4.9★ (1.5M)NoNoSep 2026
6Microsoft OneDriveMicrosoft OneDriveFree4.7★ (487K)NoYesSep 2026
7Microsoft CopilotMicrosoft CopilotFree4.7★ (1.3M)YesYesSep 2026
8Calendars: Schedule PlannerCalendars: Schedule PlannerFree4.7★ (122K)NoYesSep 2026

Top Picks for Outlook Calendar

Microsoft Outlook#1

Microsoft Outlook by Microsoft Corporation

Secure Email, Calendar & Files
Editor's Choice
📊 Productivity
4.8😐(9.2M ratings)
FreeAdsIn-App Purchases
#14in Productivity
Microsoft Outlook screenshot 1
Microsoft Outlook screenshot 2
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Microsoft Outlook screenshot 4
Microsoft Outlook screenshot 5
Microsoft Outlook screenshot 6

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
  • 👎 Limited file attachment options
Google Calendar: Get Organized#2

Google Calendar: Get Organized by Google

Easily plan & schedule
Strong Contender
📊 Productivity
4.5😊(132K ratings)
FreeIn-App Purchases
#18in Productivity
Google Calendar: Get Organized screenshot 1
Google Calendar: Get Organized screenshot 2
Google Calendar: Get Organized screenshot 3
Google Calendar: Get Organized screenshot 4
Google Calendar: Get Organized screenshot 5
Google Calendar: Get Organized screenshot 6

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.

What We Love

  • 🚀 Keeps me organized
  • 🎨 Customizable colors
  • 📅 Integrates with email and other calendars
  • 🔔 Helpful reminders
  • 🤝 Ability to share calendars

Room to Improve

  • 🐛 Crashes and freezes
  • 🕰️ Slow loading times
  • 📆 Date on app icon doesn't change
  • 🔀 Difficulty editing and managing events
  • 🌈 Limited color options
Microsoft To Do#3

Microsoft To Do by Microsoft Corporation

Capture Tasks & Set Reminders
Worth Considering
📊 Productivity
4.7😐(265K ratings)
Free
Microsoft To Do screenshot 1
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Microsoft To Do screenshot 6

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
  • 🤝 Shared list functionality
  • 🔒 Integration with Microsoft account

Room to Improve

  • 🐛 Frequent crashes and bugs
  • 🔀 Difficulty rearranging tasks
  • 🗓️ Lack of calendar view
  • 🔍 Poor search and sorting options
  • 🔗 Inconsistent syncing across devices
  • 🔒 Required Microsoft account login

More Outlook Calendar apps to explore

FAQ about Outlook Calendar

What are the best outlook calendar apps for iPhone?
Microsoft Outlook tops our outlook calendar apps ranking as of September 2026, with a 4.8-star average from 9.2M App Store ratings, and it's free to download.
Yes — 18 of the top outlook calendar apps we rank are free to download, including Microsoft Outlook and Google Calendar: Get Organized.
Microsoft Outlook shows ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 249+ outlook calendar apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
This application consolidates all your email accounts and calendars into a single, convenient location. It helps you manage your inbox, schedule meetings, and access files from various cloud storage services. The app also offers AI-powered features to enhance productivity, such as summarizing long email threads and assisting with writing.
Key features include a smart inbox that sorts messages, quick swipe actions for managing emails, easy sharing of meeting availability, and the ability to find contacts and trips. You can also view and attach files from services like OneDrive and Dropbox without downloading them, and edit Office documents directly within the app.

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