Verithiathe honest score on any app
Updated July 2026 · real, multi-region App Store reviews
Head-to-head

Microsoft Teams vs Microsoft Outlook

Microsoft Teams 4.8★ · Free + IAP 40
Winner Microsoft Outlook
Microsoft Outlook 4.8★ · Free to download 65

Microsoft Outlook is generally preferred for email and calendar management due to its reliability and organization, while Microsoft Teams struggles with persistent notification and login issues.

Full reviews: Microsoft Teams · Microsoft Outlook

Microsoft Outlook offers a more stable experience for email and calendar, with users appreciating its organization and ease of use, despite some search and syncing issues. Microsoft Teams, while valued for collaboration, is plagued by widespread notification bugs, login problems, and general instability across platforms.

Head to head

Features edge: Microsoft OutlookR1R3R5R11
Microsoft Teams Teams is praised for its communication and collaboration tools, including chat, calls, and video meetings R5. However, users desire more capabilities like screen sharing R11, scheduled messages, and chat position fixing . Some find it less customizable and cluttered R1, and note a lack of Airplay or Multicast functionality R3.
Microsoft Outlook Outlook is highly valued for its email organization and calendar management, with users finding it easy to use and effective for scheduling and reminders . However, some users report issues with the calendar not refreshing or being cumbersome . The search function is a frequent point of criticism, often described as poor or unreliable .
Ease of Use edge: Microsoft OutlookR1R17R18R56
Microsoft Teams Teams is generally considered easy to use for communication R17R56. However, recent updates have made it more annoying and difficult for some, with wasted space and less usefulness R1. Users also report issues with folder hierarchy and picture scrolling R18.
Microsoft Outlook Outlook is frequently described as easy to use and understand . Some users find the calendar cumbersome or the grouping of emails confusing . The interface can still use adjustments and modernization .
Reliability tieR2R9R10R15
Microsoft Teams Teams suffers from significant reliability issues, including persistent notification bugs R2R9R10R25, app crashes , and login/authentication problems R16R24R28R34. Syncing issues between devices are also common . Some users find it only reliable for chat R15.
Microsoft Outlook Outlook is generally seen as reliable for email delivery and operation . However, users report issues with the calendar not refreshing , emails not being received on time , and frequent logouts . Authentication issues, particularly with the Authenticator app, are a major pain point .
Performance tieR12R21R46R58
Microsoft Teams Teams users report issues with the app being slow or barely functional without Wi-Fi, even on 5G R46. It can freeze up frequently R46 and cause phones to overheat R58. The app also has bugs when switching to Picture-in-Picture mode R12 and jumps around when scrolling R21.
Microsoft Outlook Outlook users experience the app draining battery quickly and causing phones to warm up . Some find general usage slow and report glitches on iOS R78. Search is often described as slow .
Support tieR30R43R48R67
Microsoft Teams There are no specific reviews detailing direct support experiences for Teams, but the persistence of bugs suggests a lack of effective resolution R30R43R48.
Microsoft Outlook Outlook users express frustration over the inability to contact a real person at Microsoft for help with login issues and account recovery R67.
Pick Microsoft Teams if

you need a dedicated collaboration tool for chat, calls, and video meetings, especially if your organization requires it R5.

Pick Microsoft Outlook if

you primarily need a reliable email client and calendar manager with good organization features .

Evidence note: Both apps have a significant number of negative reviews, particularly concerning notifications and authentication, which skews recent sentiment compared to their high lifetime ratings. The free-to-download nature of both apps means many users are likely using them as part of a work or school ecosystem, which might influence their willingness to tolerate issues.

Frequently asked

Do Microsoft Teams and Outlook have issues with notifications?
Yes, both Microsoft Teams and Outlook have significant issues with notifications; Teams users frequently report inaccurate notification badges, delayed messages, and notifications not clearing across devices R2R9R10R25, while Outlook users sometimes experience emails not being received on time .
Are there login problems with Microsoft Teams and Outlook?
Yes, both Microsoft Teams and Outlook users report significant login and authentication problems, often involving an endless loop with the Microsoft Authenticator app (R16, R24, R28, R34 for Teams; , , , for Outlook).
How do Teams and Outlook perform on Apple devices?
Microsoft Teams users report issues with the app not downloading on new Apple computers R6 and problems with FaceTime being taken over as the default video call method R52, while Outlook users find the Mac version horrible and slow compared to Windows R84, and experience glitches on iOS R78.

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 Teams 1/5 · US Somehow constantly getting worse: Somehow the teams app developers manage to make this more annoying and more difficult to use, with more wasted space and less usefulness with every single release. Teams is now the least customizable it's ever been, with more useless buttons and wasted screen space than ever before. It doesn't even feel like a chat app anymore. It feels like a poor attempt at a da
  2. [R3] Microsoft Teams 3/5 · US No Airplay or Multicast functionality: I like Teams for its simplicity, and is adequate for the purpose for which I use it. However, the app itself lacks the functionality connect to my TV using Airplay or Multicast. Consequently, I have to haul around my heavy laptop to either cast to a smart TV or connect via HDMI.
  3. [R5] Microsoft Teams 5/5 · US Love it: This is one of my best apps to use when in a team meeting
  4. [R11] Microsoft Teams 5/5 · US Good initial support: Please continue adding capabilities, like screen sharing! Also, be able to not lock the app during a session as Vision Pro can detect when it’s taken off.
  5. [R17] Microsoft Teams 5/5 · US Team: It’s easy to communicate with team
  6. [R18] Microsoft Teams 3/5 · US Great concept but not as easy as explorer: I like having items connected, but the folders don’t seem to have easy hierarchy, tge search does not take you to folders and you can’t scroll pictures.
  7. [R56] Microsoft Teams 5/5 · US Easy to use: Like working with it
  8. [R2] Microsoft Teams 4/5 · US Great app but…: Great app, however I se notifications on the phone on a message, then when I open the app, I don’t see the message for a few minutes. That delay is annoying but livable .
  9. [R9] Microsoft Teams 3/5 · US Catch-up Notifications: Having extra notifications show with the new catchup feature is annoying.
  10. [R10] 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.
  11. [R15] Microsoft Teams 3/5 · US Very buggy - only good for chat: Only reliable for chat. Other options are buggy or don’t work. If my employer didn’t require this app, I’d remove it.
  12. [R12] Microsoft Teams 3/5 · US Buggy when going PiP: App is buggy switching between Picture in Picture when moving between apps
  13. [R21] Microsoft Teams 3/5 · US Jumps around: What’s with MS apps jumping around when scrolling. Both Outlook and Teams. When scrolling through a chat, it will often jump up or down several posts. It’s been doing this for a long time so I don’t think it’s a version bug. And I’ve reset my phone to factory so I know it’s the app.
  14. [R46] Microsoft Teams 2/5 · US Almost unusable without Wi-Fi: This app is a constant headache. If you’re not connected to Wi-Fi, it’s barely functional. Even if you’re on 5G with strong signal, it constantly displays. The spinning loading symbol. Has to be restarted, frequently, freezes up often. And that’s just for messaging! Meetings are even worse. As frustrating and error prone as the desktop teams app is, this is even wors
  15. [R58] Microsoft Teams 1/5 · US Overheating of the phone when I use the upgraded Teams app: Overheating of the phone when I use the upgraded Teams app. It’s causing too heat that I can feel my fingers almost hurting with the heat. This is unacceptable!! Pls get back the earlier version!
  16. [R30] Microsoft Teams 3/5 · US Good but Buggy: Has traditionally worked as expected and no complaints but lately notifications are a mess. Every time I get even ONE IM, it shows 8, 10, 18+ on the notification bubble. I go in and clear any/all notifications or alerts. Tested it with one in - immediately shows 10 missed notifications which isn’t true. Please fix! Updated to 3 stars - even after multiple app updates, the issue pe
  17. [R43] Microsoft Teams 1/5 · US They can’t get it right!: There have been multiple updates in the last few weeks and my app still isn’t working properly. Every time I get a notification the app shows I have 10 notifications. Fix this please!!
  18. [R48] Microsoft Teams 3/5 · US Fix the ghost notification bug: Is someone going to fix the extremely annoying bug with the app badge showing a bogus notification count? This has been a bug for years now.
  19. [R67] Microsoft Outlook 1/5 · US Bad: stupid idiots can't recover my stolen account
  20. [R25] Microsoft Teams 2/5 · US Notifies me all the time when I’m active on desktop: Even though I have it configured not to. Maddening.
  21. [R16] Microsoft Teams 1/5 · US Worst app: Worst app ever nothing works. Unable to create new account or even login I was logged out and the since it been a shame. This is very low quality. Wrong app, WORST !!!!
  22. [R24] Microsoft Teams 3/5 · US Slack is better: Getting a forced logout is fine. Not being able to log back in fully until I deleted the app and reinstalled SUCKS. Plus phantom notifications and trying to open the Teams app when I want to FaceTime people?
  23. [R28] Microsoft Teams 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.
  24. [R34] Microsoft Teams 1/5 · 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 teams.
  25. [R6] Microsoft Teams 3/5 · US Be more Apple Friendly: I got a new computer and teams is a requirement for work. Yet the app won’t download. I have to use the web browser and it works only 50% of the time. Why can’t the app work for my new Apple computer but it works for my Apple phone?? 😡 The app worked just fine on my old Apple computer.
  26. [R52] Microsoft Teams 1/5 · US No More FaceTime: Recently teams has taken over as the default video call method on my phone making it so I can’t make a FaceTime call from the iMessage app
  27. [R78] 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
  28. [R84] Microsoft Outlook 3/5 · US Outlook review: Love out look but the outlook on my mini Mac is horrible and slows me down. It’s nothing like it is on a windows program. Please make changes to make it friendly and easier to help me work faster at my job

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