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Updated July 2026 · real, multi-region App Store reviews
Head-to-head

Microsoft Outlook vs Microsoft Teams

Microsoft Outlook 4.8★ · Free to download 70
Winner Tie
Microsoft Teams 4.8★ · Free + IAP 68

Microsoft Outlook is the better choice for email and calendar management, while Microsoft Teams is more suitable for real-time communication and collaboration, despite both apps sharing similar authentication and notification issues.

Full reviews: Microsoft Outlook · Microsoft Teams

Microsoft Outlook excels in email and calendar organization, with users appreciating its ease of use and fluid operation. However, it struggles with search functionality, syncing issues, and frustrating authentication loops. Microsoft Teams is praised for its communication and collaboration features but is plagued by persistent notification bugs, connectivity problems, and similar authentication difficulties.

Head to head

Features edge: Microsoft OutlookR1R3R9R12
Microsoft Outlook Outlook users appreciate its email and calendar organization, finding it easy to use and understand R14R29. Some praise its ability to sort emails and its overall professional experience R50. However, users report issues with missing toolbars R1, inability to see or move messages to folders R3, and a cumbersome calendar interface R9. The search function is consistently criticized as poor or slow R12.
Microsoft Teams Teams is valued for its communication and collaboration features, making it easy to connect with teams and conduct meetings . Users appreciate its chat, calls, and video capabilities . However, some users find it less customizable with wasted screen space . There are also requests for features like screen sharing , scheduled messages , and better integration with personal contacts .
Ease of Use edge: Microsoft OutlookR2R9R14R16
Microsoft Outlook Many Outlook users find the app easy to use and navigate R14R29R50. It's described as fluid and responsive R2. However, some find the calendar cumbersome R9 and struggle with email grouping R9. There are also complaints about pop-ups R16 and difficulty sending new emails .
Microsoft Teams Teams is generally considered easy to use for communication . However, users report that updates often make the app more annoying and difficult to use . Issues include folders lacking easy hierarchy and difficulty scrolling pictures . Some users also report the app jumping around when scrolling through chats .
Reliability tieR2R4R6R8
Microsoft Outlook Outlook receives mixed reviews on reliability. Some users report fluid operation and no crashes R2R8. However, many experience significant issues, including the calendar not refreshing R4, inability to log in after updates R6, random password requests R10, emails not being received on time R15R21R25, and general glitchiness on iOS R18R19. Authentication issues are a major pain point, with users getting stuck in loops R28R34.
Microsoft Teams Teams users also report significant reliability problems. Common complaints include notifications not syncing across devices or showing incorrect counts R70. The app is described as buggy, especially when going Picture-in-Picture . Crashes during meetings are reported , and some users experience the app not opening or getting stuck at launch . Connectivity issues, particularly without Wi-Fi, make it almost unusable for some . Authentication loops are also a problem .
Price/Value tieR10R11R13R20
Microsoft Outlook Outlook is free to download, and users appreciate its accessibility for communication and access to other apps R11. Some find it a great download for various purposes R20. However, some users feel that Microsoft's updates do more damage than good R10 and that the company is wasting money on AI instead of building good products R13.
Microsoft Teams Teams is also free to download with in-app purchases. Users generally see it as a valuable tool for work and collaboration . However, some express frustration with being forced to use it by employers despite its bugs . There are also complaints about Copilot being useless and the app causing phone overheating , suggesting a negative value perception for some.
Support tieR4R7R19R25
Microsoft Outlook Users report difficulty recovering stolen accounts R7 and express frustration with the lack of a number to call for support to fix authentication issues . Some have tried various troubleshooting steps, including restarting and reinstalling, without success R4R19R25.
Microsoft Teams Users mention that they cannot get ahold of a real person at Microsoft for help with authentication issues . Some have tried reinstalling the app to fix syncing problems or notification bugs , with mixed results. The lack of resolution for persistent bugs, like notification issues, suggests a perceived lack of effective support .
Pick Microsoft Outlook if

You need a robust email and calendar management app for personal or professional use, especially if you prioritize ease of use for basic email functions and organization R14R29.

Pick Microsoft Teams if

You primarily need an app for real-time team communication, video calls, and collaboration, and your organization requires its use .

Evidence note: Both apps are free to download, so there isn't a free-vs-paid asymmetry in user expectations. Both apps share significant negative feedback regarding authentication and notification issues, suggesting systemic problems across Microsoft's mobile offerings.

Frequently asked

Which app is better for managing emails?
Microsoft Outlook is generally considered better for managing emails, with users praising its organization, ease of use, and timely email delivery R14R29R50.
Do both apps have issues with notifications?
Yes, both Microsoft Outlook and Microsoft Teams have significant issues with notifications; Outlook users report emails not arriving on time R15R21 and calendar not refreshing R4, while Teams users frequently complain about incorrect notification badge counts and notifications not clearing or syncing across devices R70.
Are there problems with logging in to either app?
Yes, both apps suffer from severe authentication problems, with users frequently reporting being logged out R22R36 and getting stuck in endless loops when trying to use the Microsoft Authenticator app R28R34.
Which app is more reliable?
Neither app has a clear edge in reliability; Outlook users report frequent glitches, syncing issues, and crashes R4R6R10R18, while Teams users experience crashes during meetings, connectivity problems, and persistent notification bugs .

What reviewers actually said

Built only from these 120 real reviews (foreign ones translated). Superscripts jump to the quote here. Apple has no per-review links, so [ref] opens that app's reviews on the App Store.

  1. [R1] Microsoft Outlook 1/5 · US Bar Missing: The tool bar at bottom when working with groups of emails does not appear. Really frustrating.
  2. [R3] Microsoft Outlook 3/5 · US Folders: Wish I could see my folders and move messages to them.
  3. [R9] Microsoft Outlook 3/5 · US Review: I find the calendar a bit cumbersome and confusing when i am in a rush and the way emails are grouped makes it unclear what is most recent, and causes confusion looking for an email (latest) at times - On apple ipad
  4. [R12] Microsoft Outlook 3/5 · US Good email bad search: Outlook search is miserable. Calendar, mail sorting and options otherwise are fantastic.
  5. [R2] Microsoft Outlook 5/5 · US Great responsive email app: The app happens to operate fluidly and no crashes.
  6. [R14] Microsoft Outlook 5/5 · US Easy to use: Your app is way much easier to use and understand than most email sites. Thank you.
  7. [R16] Microsoft Outlook 1/5 · US “What do you think of our app” popups are super duper annoying: These popups asking if I’m enjoying the app makes me not enjoy the app and leave bad reviews. Stop doing that.
  8. [R4] Microsoft Outlook 2/5 · US Calendar stopped refreshing: On one of the recent updates the calendar to stop refreshing. Meetings are moved but not being reflected in the calendar. I’ve tried restarting, still out of date.
  9. [R6] Microsoft Outlook 3/5 · US Latest update: I have not been able to login since the latest update. I need this for my job. I’ve been having to use a pc to access my emails
  10. [R8] Microsoft Outlook 5/5 · US Microsoft for years: Never had an issue
  11. [R10] Microsoft Outlook 1/5 · US Buggy, drains the battery: The app keeps on asking for my email account password at random times and it drains the battery fast. The phone is always warm. I have to delete it. Those needless weekly updates do more damage than good.
  12. [R11] Microsoft Outlook 5/5 · US School email address: This email system has been easily accessible for communication and access to the apps, I will continue to use this in the future as well
  13. [R13] Microsoft Outlook 1/5 · US Can't disable Co-pilot, doesn't sync: I DO NOT WANT AI IN ANYTHING! If you click disable Co-pilot it still stays on. I added appointments to the app and it didn't sync to the desktop. Just not very good, I'll have to go back to Google Calendar. Microsoft is a shell of what it was, stop wasting money on AI and just build good products.
  14. [R20] Microsoft Outlook 5/5 · US My Outlook App: Every moment is a brilliant one when using outlook! Everything at your finger tips at a moments notice. Definitely a great download for whatever you are doing!
  15. [R7] Microsoft Outlook 1/5 · US Bad: stupid idiots can't recover my stolen account
  16. [R19] Microsoft Outlook 2/5 · US app keeps having issues: App keeps stating that it is updating even though it is not and will not refresh. I have reset all deleted app deleted other apps. Please help
  17. [R25] Microsoft Outlook 1/5 · US Inbox: Haven’t been able to receive emails for three months now and have done everything I was told to try and fix it.
  18. [R29] Microsoft Outlook 5/5 · US Fantastic App: Very organized and easy to use.
  19. [R50] Microsoft Outlook 5/5 · US 5 out of 5: Awesome look, easy to navigate, emails arrive in a timely manner; no waiting or delays and in my case it always sorts out emails correctly once I designate an email as spam I don’t see anymore from that sender, great tech and even better system!
  20. [R15] Microsoft Outlook 3/5 · US No recibo email: En varias ocasiones no recibo los correos a tiempo y he llamado a las compañías pensando que es proplema de ellos y dicen que supe pasar cuando tienes correo de hotmail.
  21. [R21] Microsoft Outlook 3/5 · US Unreliable for 2FA use: Most of the time, the refresh action will get new emails sent 5 minutes ago, but sometimes not which is not good for time-sensitive 2FA actions. When it does not work as it is supposed to, it is usually on hotspot, but somehow decides not to check in with the server even though I have requested a refresh. Settings are not the problem. And then 2FA code emails don’t come th
  22. [R70] Microsoft Teams 2/5 · US Notifications/badges are still not working correctly: Notifications/badges are still not working correctly. If I’ve read a message on my MacBook or PC it’s still not updating the app badges as expected. This broke 3-4 updates ago! Please fix. It’s annoying and misleading.
  23. [R22] Microsoft Outlook 1/5 · US Logs me out weekly: So work emails are missed until I notice.
  24. [R28] Microsoft Outlook 1/5 · US Authentication is atrocious: If you use this on mobile they make it impossible to authenticate on a single device, the app tries to authenticate on the authentication app via the authentication app. If you have a meeting to get to on mobile and you get signed out good luck. Also the outlook sign in solution also failed. This process all around is a failure.
  25. [R34] Microsoft Outlook 2/5 · US Richest poor software in the world: The application functions just like any other email application with the added side effect that you will randomly not be able to sign in due to their Authenticator app being complete and total garbage. It will trap you in an endless loop of needing to use the Authenticator app to authenticate that you’re using the Authenticator app so you can authenticate outloo
  26. [R36] Microsoft Outlook 3/5 · GB Good app but Annoying foibles: Great to have Outlook on my mobile. Search is slow but the most annoying feature is logging me out periodically. I have face recognition enabled, so logging out is a pain in the ^%^*
  27. [R18] Microsoft Outlook 3/5 · US Very glitchy on iOS: I encounter a lot of glitches on iOS.M, such as outlook randomly deciding to not allow me to respond to an email thread no matter what I do

Synthesized from 120 recent App Store reviews · updated July 2026 · View on the App Store