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

Microsoft 365 Copilot vs Microsoft Teams

Microsoft 365 Copilot 4.7★ · Free + IAP 65
Winner Microsoft Teams
Microsoft Teams 4.8★ · Free + IAP 75

Microsoft Teams is generally more reliable for communication and collaboration, despite its bugs, while Microsoft 365 Copilot offers powerful AI assistance but struggles with consistency and integration.

Full reviews: Microsoft 365 Copilot · Microsoft Teams

Microsoft 365 Copilot is praised for its AI capabilities in content generation and research, but many users find it inconsistent, buggy, and poorly integrated with existing Microsoft 365 apps. Microsoft Teams, while also experiencing numerous bugs with notifications and syncing, remains a widely used and generally effective communication and collaboration platform.

Head to head

AI Functionality & Accuracy edge: Microsoft 365 CopilotR2R3R4R13
Microsoft 365 Copilot Microsoft 365 Copilot is seen as a powerful AI tool for writing, research, and administrative tasks, with users appreciating its ability to generate content, provide citations, and assist with complex thought processes R2. However, many users criticize its accuracy, noting that it often provides outdated information, makes basic mistakes, or even 'lies' R3R4R25. Some find it 'useless' or a 'slop generator' and report issues with it messing up documents R13R51.
Microsoft Teams Microsoft Teams users have a negative view of Copilot's integration, with one review explicitly stating that 'Copilot is a completely useless function and ruined teams' .
Integration & User Experience tieR1R9R10R16
Microsoft 365 Copilot Users are frustrated with Microsoft 365 Copilot's integration, especially on mobile. Many lament that the app, formerly a 'one stop shop' for documents, is now 'too integrated' with Copilot, making it difficult to access and edit files without downloading multiple separate apps R1R10R49R51. There are complaints about excessive login requirements , a buggy interface R9, and missing features like chat search or organization . Some users also report issues with autocorrect mechanics and an inability to use the app on their iPhone R16.
Microsoft Teams Microsoft Teams is generally seen as a functional communication tool . However, users report issues with its integration with other Apple features, such as not working well on new Apple computers or taking over FaceTime as the default video call method . Some find the interface clunky and less customizable with each update .
Reliability & Performance tieR12R22R25R42
Microsoft 365 Copilot Microsoft 365 Copilot is described as 'glitchy' R12, with issues like documents not syncing and being lost R42, or the app not acknowledging purchases R22. Some users report it 'chugs battery life' R51 and is generally 'not very accurate' R25.
Microsoft Teams Microsoft Teams users frequently report significant reliability issues. Common complaints include persistent notification bugs R62R69R70R85, app crashes during meetings , inability to log in or authenticate , and sync failures across devices R70. The app is also described as 'buggy' when switching to Picture-in-Picture and 'almost unusable without Wi-Fi' , leading to freezing and frequent restarts. Some users also report phone overheating and the app being stuck at launch .
Features & Usability edge: Microsoft TeamsR6R7R9R15
Microsoft 365 Copilot Microsoft 365 Copilot is praised for its ability to help with teaching , administrative tasks , and general productivity . Users appreciate its conversational AI capabilities and its usefulness for research and idea generation . However, some find it difficult to use, stating 'I have no idea how to use this!' R6 and noting a lack of tutorials for mobile use . It's criticized for missing features R9R15 and not being customized for corporate structures R7. Some users dislike being forced to use AI to create documents or find it difficult to fill in forms .
Microsoft Teams Microsoft Teams is valued for its communication features, including chat, calls, and video . Users appreciate its simplicity and ability to keep teams connected . However, users desire features like screen sharing , scheduled messages, and fixed chat positions . There are requests for more 'Apple Friendly' features and the ability to change contact names like in Skype . Some find the file organization and search functionality lacking and report issues with CarPlay integration . Many miss Skype's user-friendliness for personal calls and its chat box .
Pick Microsoft 365 Copilot if

Pick Microsoft 365 Copilot if you need an AI assistant for content generation, research, and administrative tasks, and are willing to overlook current inconsistencies and integration challenges R2.

Pick Microsoft Teams if

Pick Microsoft Teams if you need a primary communication and collaboration tool for work, prioritizing its core chat, call, and video functionalities despite frequent bugs and notification issues .

Evidence note: Both apps have a mix of positive and negative reviews, with recent negative reviews often highlighting bugs and usability issues. Microsoft 365 Copilot's negative reviews frequently focus on AI accuracy and integration problems, while Microsoft Teams' negative reviews are dominated by notification and login bugs.

Frequently asked

Is Microsoft 365 Copilot effective for corporate use?
Microsoft 365 Copilot still needs improvement for corporate structures, as it struggles to determine roles like project leaders or group admins, limiting its usefulness for detailed organizational queries R7.
Does Microsoft Teams have persistent notification issues?
Yes, Microsoft Teams frequently has persistent notification issues, with users reporting incorrect badge counts, delayed notifications, and notifications not clearing even after messages are read on other devices R62R69R70R85.
Can I use Microsoft 365 Copilot to manage my documents?
Many users report that Microsoft 365 Copilot has negatively impacted document management, transforming the app from a 'one stop shop' for OneDrive documents into a disconnected experience that often requires downloading multiple individual apps to open or edit files R1R10R49R51.

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. [R2] Microsoft 365 Copilot 5/5 · US Revolutionary: Increased MY quality!
  2. [R3] Microsoft 365 Copilot 3/5 · US A bit behind…: 1. Model seems to be behind on docs. Answers are two-to-three versions ago. 2. When giving solutions, it blasts you with too many solution paths. Needs to be more stepwise.
  3. [R4] Microsoft 365 Copilot 1/5 · US By far the dumbest AI: Constantly forget instructions, makes basic mistakes and even lies at time! Don’t ask it anything more than proofreading things or translations. Honestly Microsoft should pay us to use this joke of an AI.
  4. [R13] Microsoft 365 Copilot 1/5 · US Useless: This feature only messes up what I am doing. It doesn’t appear that it can be removed so I never see it again!!! Now, I’d like to know where is my 365 subscription?
  5. [R1] Microsoft 365 Copilot 2/5 · US What’s Going On?: Remember when Microsoft 365 was actually functional? Before Copilot took over completely? Don’t get me wrong, I use Copilot, a lot…but there’s a specific app for that. I liked Microsoft 365 so I had one stop to open, edit, save documents in my OneDrive without having to download each individual app on my phone. Now this is too integrated and not functional. Sometimes keeping it
  6. [R9] Microsoft 365 Copilot 3/5 · US Still missing so many features: Still missing so many features but I appreciate you all getting this beta out. One bug I keep experiencing is that when viewing a chat it keeps scrolling to the top automatically.
  7. [R10] Microsoft 365 Copilot 1/5 · US What is this garbage?: This app used to be a one stop shop for all of my documents in OneDrive. It was convenient for use on an iPhone (since I didn’t want all those apps here). Now it’s a disconnected version of their CoPilot app. I.e. None of the existing CoPilot history appears to be accessible here. tl;dr. This is garbage and if allowed, I would rate it a 0.
  8. [R16] Microsoft 365 Copilot 1/5 · US Can’t Use It on my IPhone: Can’t be used
  9. [R12] Microsoft 365 Copilot 3/5 · US Getting better: Was glitchy the first time I used it and didnt really get the task or made me repeat what was asked as if I didnt ask. Its much better now since the update and looking forward to the future advancements it will bring.
  10. [R22] Microsoft 365 Copilot 1/5 · US Utter garbage: I pay monthly for 365 but this garbage app doesn’t acknowledge my purchase, so I can’t use it.
  11. [R25] Microsoft 365 Copilot 2/5 · US Not very accurate: I get about 1 out of 10 responses that are correct. The links provided don’t necessarily go to what was described. Hard or impossible to provide photos when using on an iPad. Not sure if this is easier on a PC.
  12. [R42] Microsoft 365 Copilot 3/5 · GB Hit and miss: Just getting started with ai and copilot, first document I’ve invested effort into co building and it losses it. Apparently it’s rare for the docs not to sync and lose stuff, but it did. Under the title of the doc we built is an excel doc I was working on a week or two ago (not with Cpilot). Will persevere. Not impressed so far.
  13. [R6] Microsoft 365 Copilot 3/5 · US Why is this here?: I have no idea how to use this!
  14. [R7] Microsoft 365 Copilot 2/5 · US Not customized to corporate structure: Still needs to be trained on corporate structure and the lack of database organization by verticals. If you ask it who is the leader of a project, or admin of group, it cannot determine this. If you ask it a simple who is the boss of this vertical it can answer. That is not useful… The ability to search by project, expertise, admin roles, everything not liste
  15. [R15] Microsoft 365 Copilot 3/5 · US missing functionality: when you have moved from Microsoft Office suite to Microsoft Copilot, many of the applications are missing functionality that has been embedded for years
  16. [R62] 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 .
  17. [R69] Microsoft Teams 3/5 · US Catch-up Notifications: Having extra notifications show with the new catchup feature is annoying.
  18. [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.
  19. [R85] 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.
  20. [R49] Microsoft 365 Copilot 1/5 · US It sucks: How do I access my apps and files?
  21. [R51] Microsoft 365 Copilot 1/5 · US Slop generator: This app was formerly the way I could access my PowerPoints and Word documents for work and presentations, and now it does nothing but scrape my data, chugs battery life, and tries to shove AI down my throat. I can't access any of my files easily anymore, and to open/view my files I need to have at least 4 (!?) other apps installed for the same tasks I used to do. AI is garbage, an

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