What This App Is Trying To Be
Microsoft 365 Copilot is Microsoft’s mobile hub for its AI assistant, folding in Word, Excel, PowerPoint, file search, and a chat-based Copilot into a single app. The pitch is that instead of juggling separate Office apps, you get one place to find files, ask questions about them, draft content, and manage projects with tools like Copilot Notebooks, Researcher, and Analyst. It’s aimed squarely at Microsoft 365 subscribers, whether that’s a work account tied to an organizational license or a personal Microsoft 365 subscription, who want quick access to their documents and some AI help on the go.
In practice, this is less a file manager with AI bolted on and more an AI chat app that happens to also hold your files, and that framing matters a lot for how satisfying it is to use.
Where It Actually Delivers
When it works, users genuinely like the cross-device syncing concept, one reviewer described it as ‘amazing when it works’ for keeping documents in sync across laptop, phone, and tablet. The natural-language features are also appreciated when they land correctly: asking Copilot to summarize a document, draft an email, or explain a concept is exactly the kind of task the app description promises, and for basic grammar and spelling help, at least one longtime user says it still performs well. The built-in agents like Researcher and Analyst, along with templates for images, posters, and banners, add capability beyond what the older Office app offered, giving power users more to do without leaving the app.
The File Access Problem Nobody Asked For
The most repeated complaint is that the app now defaults to opening a chat window instead of your files. One user called it ‘completely inaccessible and frustrating,’ explaining they just wanted their files, not a conversation with a robot, and had to dig through a ‘search’ tab to find documents at all. Others echo this directly: multiple reviews describe wanting to simply open a Word, Excel, or PowerPoint file and instead being prompted to upload it to Copilot and ‘ask from the file’ rather than just viewing it. For anyone who liked the straightforward Office 365 experience of opening, editing, and sharing files, this redesign feels like a step backward, not an upgrade.
Sync, Sign-In, and Basic Editing Still Break
Beyond the AI-first redesign, core functionality has real cracks. Several users report sync failures where updated documents simply won’t pull through to phone or tablet no matter how many times they force it, and one reviewer mentions losing information entirely when switching between devices despite autosave being on. Sign-in is another recurring headache, with a user stuck in a loop of ‘trying to sign you in from another app’ messages that made the app unusable at that moment. Perhaps most alarming for a productivity app: one reviewer reports losing the ability to create new Word, Excel, or PowerPoint documents from within the app after months of paying for a subscription, left only with image and infographic tools. A disabled clipboard and slow, sometimes indefinite loading circles when opening documents round out the frustrations, with one user noting the problem persisted on and off Wi-Fi.
Who Should Actually Install This
If your main goal is chatting with an AI assistant to draft content, summarize documents, or brainstorm using voice, this app does that job and gives you extras like Researcher and Analyst that basic Office apps don’t. But if you primarily want fast, no-friction access to your existing Word, Excel, and PDF files to view or edit on the go, the reviews suggest you’ll fight the interface to get there, and may run into sync issues, sign-in loops, or missing creation tools once you do.
Given how many complaints center on the same handful of issues, file access being buried, syncing breaking, and basic document creation disappearing, this app is best suited for users who are fully bought into the AI-assistant workflow and willing to route around its Office-app roots, rather than those who just want a lightweight, reliable mobile Office replacement.





