Microsoft has overhauled its Microsoft 365 mobile app to be an "AI-first" experience, opening directly to Copilot chat and stripping away document editing and file browsing. As first reported by Digital Trends on July 18, 2026, the change, confirmed by Microsoft's own support documentation, removes per-app Copilot toggles from the iOS and Android versions of Word, Excel, and PowerPoint, leaving mobile users with a blunt, all-or-nothing privacy setting.

What Actually Changed

The Microsoft 365 app—the central hub for Office on mobile—no longer opens to a file browser. Instead, it launches straight into Copilot chat, positioning the AI assistant as the primary interface. Editing documents or browsing files now requires users to switch to the standalone Word, Excel, PowerPoint, or OneDrive apps. While Microsoft has been integrating Copilot across its ecosystem, the mobile shift marks a deliberate design choice to make AI the default entry point.

The heart of the user-control issue lies in how you turn Copilot off. On Windows and Mac, each desktop Office app (Word, Excel, PowerPoint) includes a clearly marked "Enable Copilot" checkbox in the app settings. If you don't want AI features in Word but are happy with them in Excel, you can choose per app. On iOS, Android, and the web versions of those same apps, that checkbox simply doesn't exist. Instead, mobile users face a single, sweeping privacy setting: disable "Copilot-related connected experiences." Microsoft warns that flipping this switch isn't just about Copilot—it also disables Outlook suggested replies, Word text predictions, PowerPoint Designer, automatic image alt text, and other cloud-powered aids.

Outlook for mobile stands as the sole exception. Its app includes a dedicated Copilot toggle that applies across all devices signed into the same account, offering the kind of granular control missing elsewhere. On the desktop, you can also remove the Copilot button from the ribbon, but Microsoft specifically notes that hiding the icon does not disable the service.

The new design has rolled out to the latest versions of Microsoft 365 on the Apple App Store and Google Play, with the support pages updated to reflect the change. Microsoft has not provided a timeline for adding per-app toggles to mobile, nor has it explained why the feature is absent when it's present on desktop.

What It Means For You

For Everyday Users

If you're a casual Office user on your phone or tablet, you'll now find Copilot front and center every time you open the Microsoft 365 app. There's no quick way to turn it off in just one app—say, to keep AI suggestions out of Word while still using them in Excel. Your options boil down to two uncomfortable choices: live with Copilot or nuke all connected experiences and lose handy tools like text predictions and Designer. Many users may not even realize what's been sacrificed when they toggle that broad switch.

The change also raises privacy concerns. Copilot relies on cloud processing, and while Microsoft states that it uses encrypted connections and doesn't use your data to train its models, the always-on nature may make users uneasy. For those who simply find AI prompts distracting or unwanted, the lack of a simple "no" button feels like a forced upsell.

For Business Users and IT Admins

The missing per-app toggles create a larger headache for organizations that need to enforce granular AI policies. Suppose your compliance rules allow Copilot in Outlook but not in Word documents containing sensitive information. On desktop, you can manage that with per-app checkboxes or group policies. On mobile, you're stuck. An admin can push a blanket disable of connected experiences via mobile device management (MDM) or app configuration policies, but that kills all the other cloud features, potentially hampering productivity.

Outlook's dedicated toggle offers a sliver of flexibility, but for the core Office apps, admins will have to decide between allowing full Copilot access or blocking the apps entirely if risk is too high. Some organizations may opt to restrict users to the desktop versions only or invest in third-party mobile management tools that can selectively block network traffic. It's a frustrating gap that puts the burden on IT to explain why a simple checkbox can't be replicated on the platform most employees carry in their pockets.

How We Got Here

Microsoft's mobile pivot is part of a broader industry sprint to embed AI as the default layer across every app. As Digital Trends documented, Google Photos now features "Ask Photos," a Gemini-powered assistant that searches your library and answers questions based on face labels and account data—experimental and with its own set of scattered privacy controls. Spotify launched "Talk to Spotify" in beta on July 14, letting premium users use natural language to request songs or explore history. The pattern is unmistakable: companies see AI not as an optional tool but as the main way users should interact with their products.

For Microsoft, the Copilot push has been relentless. Since its initial rollout in Windows and Edge, Copilot has been woven into the Microsoft 365 suite. On the desktop, Microsoft provided per-app opt-outs, likely in response to enterprise demand and early feedback. But on mobile, the strategy appears different—perhaps because mobile users are less likely to dive into settings, or because Microsoft wants to drive engagement metrics in a space where AI adoption has been slower. The documentation doesn't explain the disparity, leaving users to speculate whether it's a technical limitation, a design philosophy, or a deliberate nudge.

The result is a fragmented control landscape: desktop users get fine-grained control, while mobile and web users get an axe. This inconsistency has real consequences for anyone trying to maintain a consistent AI policy across devices.

What To Do Now

Immediate Steps for Mobile Users

  1. Check Your Outlook Mobile App: If you use Outlook, open its settings and look for the dedicated Copilot toggle. Turn it off or on as needed—this applies across all devices with the same account and doesn't affect other connected experiences.
  2. Disable Copilot Broadly (If You Must): In Word, Excel, or PowerPoint on mobile, go to Settings > Privacy > and turn off "Copilot-related connected experiences." Note that this will also disable other features like text predictions and Designer. If you're okay with that trade-off, it's your only current path to a Copilot-free mobile Office.
  3. Manage on Desktop First: If you have access to the desktop versions, open each app (Word, Excel, PowerPoint, Outlook) and uncheck "Enable Copilot" in the privacy or trust center settings. This disables Copilot in those specific desktop apps. Then log out and back in on your mobile device to ensure settings sync where possible.
  4. Consider Alternative Workflows: If the broad toggle is too harsh, you might simply avoid the Microsoft 365 app and rely on the standalone Word, Excel, and PowerPoint apps—but those still contain Copilot without a per-app off switch. Another option for read-only tasks is to open documents in a browser with privacy restrictions, though editing will be limited.

For IT Administrators

  • Review Cloud Policy Settings: In the Microsoft 365 admin center, look under Settings > Org settings > Microsoft Copilot. You can disable Copilot for your entire organization, but note that this is an all-or-nothing tenant-level switch. It's not per-app.
  • Use App Configuration Policies: For managed devices (Intune, etc.), you may be able to push a configuration that sets the "Connected Experiences" key to false across the Office mobile apps. This effectively disables Copilot but also the other cloud services. Test it with a pilot group first.
  • Controls for Outlook: The Outlook mobile Copilot can be managed separately via the Exchange Online admin center or PowerShell: set the CopilotEnabled parameter to false. This is granular and recommended if you need to allow Copilot in other parts of Office.
  • Stay Vigilant: Microsoft's settings evolve. Bookmark the official Microsoft 365 Copilot admin documentation and check for updates frequently. Provide feedback through your account team or Microsoft's feedback channels—enterprise pushback is often the only thing that restores missing controls.

Outlook

The industry is at a crossroads. As AI becomes embedded in every app, the demand for clear, per-feature opt-outs will only grow. Regulators, particularly in the EU, may eventually step in with transparency and choice requirements. Microsoft, with its deep enterprise roots, has a track record of adding back controls after listening to customers—so per-app mobile toggles could appear in a future update, perhaps under performance or privacy flags.

For now, the message is clear: AI is the default door on mobile, and Microsoft has only given you a sledgehammer to close it. Keep your apps updated, keep an eye on the settings panels, and be ready to adjust your workflow if the current trade-offs aren't acceptable. The next few months will show whether user voice can pry back some granular control on the small screen.