Best Outlook 365 Apps

247+ iOS apps curated and reviewed

4.5 avg rating
19 free apps
Updated September 2026

Finding the right outlook 365 apps can be overwhelming with so many options. We've analyzed 247+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Compare top Outlook 365 Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Microsoft OutlookMicrosoft OutlookFree4.8★ (9.2M)YesYesSep 2026
2Mail App for Outlook 365Mail App for Outlook 365Free3.7★ (6)YesYesAug 2026
3Microsoft CopilotMicrosoft CopilotFree4.7★ (1.3M)YesYesSep 2026
4MailMailFree4.6★ (4.4M)NoNoSep 2026
5Microsoft TeamsMicrosoft TeamsFree4.8★ (3.4M)NoYesSep 2026
6WPS Office-AI Doc, PDF, SheetWPS Office-AI Doc, PDF, SheetFree4.8★ (18K)YesYesSep 2026
7Microsoft OneDriveMicrosoft OneDriveFree4.7★ (487K)NoYesSep 2026
8Mail App for OutlookMail App for OutlookFree4.5★ (6.8K)NoYesSep 2026

Top Picks for Outlook 365

Microsoft Outlook#1

Microsoft Outlook by Microsoft Corporation

Secure Email, Calendar & Files
Editor's Choice
📊 Productivity
4.8😐(9.2M ratings)
FreeAdsIn-App Purchases
#13in Productivity
Microsoft Outlook screenshot 1
Microsoft Outlook screenshot 2
Microsoft Outlook screenshot 3
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
Microsoft Copilot#3

Microsoft Copilot by Microsoft Corporation

AI-powered productivity
Worth Considering
📊 Productivity
4.7😐(1.3M ratings)
FreeAdsIn-App Purchases
#12in Productivity
Microsoft Copilot screenshot 1
Microsoft Copilot screenshot 2
Microsoft Copilot screenshot 3
Microsoft Copilot screenshot 4
Microsoft Copilot screenshot 5
Microsoft Copilot screenshot 6

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
  • 🐛 Frequent crashes and performance issues
  • 💰 Subscription-only model, no standalone option

More Outlook 365 apps to explore

FAQ about Outlook 365

What are the best outlook 365 apps for iPhone?
Microsoft Outlook tops our outlook 365 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 — 19 of the top outlook 365 apps we rank are free to download, including Microsoft Outlook and Mail App for Outlook 365.
Microsoft Outlook shows ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 247+ outlook 365 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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