Best Microsoft Office 365 Email Apps

237+ iOS apps curated and reviewed

4.6 avg rating
20 free apps
Updated August 2026

Looking for free microsoft office 365 email apps? 20 of our 237+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Microsoft Office 365 Email Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Microsoft OutlookMicrosoft OutlookFree4.8★ (9.2M)YesYesSep 2026
2Microsoft CopilotMicrosoft CopilotFree4.7★ (1.3M)YesYesSep 2026
3Mail App for Outlook 365Mail App for Outlook 365Free3.7★ (6)YesYesAug 2026
4MailMailFree4.7★ (4M)NoNoSep 2026
5Microsoft ExcelMicrosoft ExcelFree4.8★ (1.4M)NoYesSep 2026
6Microsoft 365 AdminMicrosoft 365 AdminFree4.6★ (5.8K)NoNoAug 2026
7Microsoft WordMicrosoft WordFree4.7★ (3M)NoYesSep 2026
8CalendarCalendarFree4.9★ (1.5M)NoNoSep 2026

Top Picks for Microsoft Office 365 Email

Microsoft Outlook#1

Microsoft Outlook by Microsoft Corporation

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

Microsoft Copilot by Microsoft Corporation

AI-powered productivity
Strong Contender
📊 Productivity
4.7😐(1.3M ratings)
FreeAdsIn-App Purchases
#24in Productivity
Microsoft Copilot screenshot 1
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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
Mail App for Outlook 365#3

Mail App for Outlook 365 by ElevenThirteen LLC

Exchange express office email
Worth Considering
📊 Productivity
3.7(6 ratings)
FreeAdsIn-App Purchases
Mail App for Outlook 365 screenshot 1
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Manage your office email efficiently with instant search, an intelligent inbox that prioritizes important messages, and quick filing options. This app supports Exchange and IMAP accounts, offering a streamlined experience for professionals.

More Microsoft Office 365 Email apps to explore

4
Mail
Mail
Mail
by Apple
Free

Consolidate all your email accounts into a single, organized inbox. Prioritize important messages, quickly respond with smart replies, and manage your inbox efficiently with features like scheduling and snoozing. Enjoy enhanced privacy with IP address hiding and read receipt prevention.

Unified inbox for multiple accountsAutomatic message categorizationPriority Messages and summarization
📊 Productivity
(4M)
free
5
Microsoft Excel
Microsoft Excel
Microsoft Excel
Organize Your Data and Budget
Free

This powerful productivity app allows you to create, view, and edit spreadsheets on the go. Manage data, perform calculations, and analyze information with robust formatting and charting tools. Share your work easily with others.

Create, view, and edit spreadsheetsData analysis with charts and graphsBudgeting and accounting tools
📊 Productivity
(1.4M)
free with in-app purchases
6
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
7
Microsoft Word
Microsoft Word
Microsoft Word
Create a Resume, Essay or PDF
Free

Create, edit, and share documents on your mobile device. This powerful word processor offers templates, formatting tools, and collaborative features to help you write impactful text documents, resumes, and more. Your office moves with you, allowing for seamless editing and sharing from anywhere.

Create and edit documentsModern templatesRich formatting and layout options
📊 Productivity
(3M)
free with in-app purchases
8
Calendar
Calendar
Calendar
by Apple
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
9
Google
Google
Google
Search with AI, Images & Text
Free

This app provides a comprehensive search experience, integrating AI for quick answers and personalized content. It allows you to search using images, voice, or text, and offers features like song identification and real-time translation.

AI Overviews for quick answersImage search with LensHum to Search for song identification
🔧 Utilities
(5M)
free with in-app purchases
10
TypeApp Email, Mail & Exchange
TypeApp Email, Mail & Exchange
TypeApp Email, Mail & Exchange
Upgrade your Email Experience
Free

Manage all your email accounts from a single, customizable app. Enjoy instant smart push notifications, a unified inbox, and intelligent features like email clusters for simplified organization. Protect your inbox with Touch ID and passcode security.

Unified inbox for all email accountsInstant smart push notificationsEmail clusters for organization
📊 Productivity
(915)
free with in-app purchases
11
Google Sheets
Google Sheets
Google Sheets
Collaborate on Spreadsheets
Free

Create, edit, and collaborate on spreadsheets from anywhere, anytime. Work offline, format cells, insert formulas, and view charts. Seamlessly edit Excel files and enjoy automatic saving of your work.

Create and edit spreadsheetsReal-time collaborationOffline access
📊 Productivity
(1.8M)
free
12
Boxer - Workspace ONE
Boxer - Workspace ONE
Boxer - Workspace ONE
Omnissa Workspace ONE
Free

Manage email, calendar, and contacts efficiently with customizable tools like swipe gestures and quick replies. This app offers a modern, intuitive interface designed for professionals to boost productivity on the go. It also includes features for seamless conference call dialing and robust data security.

Unified email, calendar, and contactsCustomizable swipe gesturesQuick reply templates
💼 Business
(77K)
free
13
Google Meet
Google Meet
Google Meet
Video calling and meetings
Free

Connect with friends, family, and colleagues through high-quality video calls and meetings. Schedule calls, send video messages, or join spontaneous conversations. Enhance interactions with features like real-time captions, in-call chat, and engaging effects.

High-quality video callsScheduled meetingsVideo messages
🌐 Social Networking
(2.3M)
freemium
14
Google Slides
Google Slides
Google Slides
by Google
Free

Create, edit, and collaborate on presentations from any device. Work offline, add rich media, and present directly from your phone or tablet. Seamlessly integrate with video calls and other productivity tools.

Create and edit presentationsReal-time collaborationOffline access
📊 Productivity
(408K)
free
15
Slack
Slack
Slack
Business Communication
Free

This app streamlines business communication by bringing together coworkers, customers, and contractors in a secure, unified workspace. It offers AI-powered search and summarization, automation tools, and integrations with over 2,600 apps to reduce busywork and improve collaboration.

Unified workspace for teams and external partnersAI-powered search and conversation summarizationVideo conferencing with screen sharing
💼 Business
(50K)
freemium
16
Microsoft Power BI
Microsoft Power BI
Microsoft Power BI
Business data analytics
Free

Access and analyze your business data from anywhere with powerful mobile tools. Visualize key metrics, filter information, and share insights on the go. Get real-time notifications and ask questions of your data with a virtual analyst.

View data in one placeExplore, filter, and focus dataAnnotate and share reports
💼 Business
(96K)
free
17
Blackboard
Blackboard
Blackboard
by Anthology Inc.
Free

This app connects students and instructors to their institution's learning management system. Access course materials, submit assignments, track grades, and communicate with peers and instructors on the go.

Course updates and announcementsAssignment submission and testingGrade tracking
📚 Education
(442K)
free
18
Numbers: Make Spreadsheets
Numbers: Make Spreadsheets
Numbers: Make Spreadsheets
Plan, organize, and visualize
Free

Design impressive spreadsheets with a flexible canvas, interactive charts, and powerful functions. Collaborate with others and access your work across devices. Includes tools for data analysis and text composition.

Apple-designed templatesFlexible canvas for layoutInteractive charts and pivot tables
📊 Productivity
(215K)
free
19
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
(139K)
free
20
myMail box: email client app
myMail box: email client app
myMail box: email client app
E-mail for Gmail, Hotmail, AOL
Free

Consolidate and manage multiple email accounts from various providers in a single, user-friendly interface. Enjoy customizable notifications, enhanced security features, and efficient search capabilities to streamline your communication.

Unified inbox for multiple email accountsCustomizable push notificationsEmail thread view
📊 Productivity
(18K)
free with in-app purchases

FAQ about Microsoft Office 365 Email

What are the best microsoft office 365 email apps for iPhone?
Microsoft Outlook tops our microsoft office 365 email apps ranking as of August 2026, with a 4.8-star average from 9.2M App Store ratings, and it's free to download.
Yes — 20 of the top microsoft office 365 email apps we rank are free to download, including Microsoft Outlook and Microsoft Copilot.
Microsoft Outlook shows ads and offers in-app purchases, according to its App Store listing as of August 2026.
We track 237+ microsoft office 365 email apps on the iOS App Store as of August 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.