My OneDrive App consumes 94,76 GB on my iPhone

Oliver Sievers 20 Reputation points
2025-12-03T09:51:14.9466667+00:00

The OneDrive App consumes 94,76 GB on my iPhone - that cannot be correct.

  • I have not tagged any files for offline availability
  • The bin is empty

Emptying the cache is not possible as the settings menu does not have a button "Empty Cache"

What can I do?

Here are some screenshots:

20251203_093940000_iOS

20251203_094019000_iOS

20251203_094040000_iOS

20251203_094100000_iOS

Microsoft 365 and Office | OneDrive | For home | iOS
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Answer accepted by question author
Harold Milan 17,595 Reputation points Independent Advisor
2025-12-03T14:21:40.2633333+00:00

OneDrive caches previews and temporary files locally for performance. Over time, this can grow significantly, especially if you’ve opened large files or media. Since iOS doesn’t provide a direct Clear Cache option in OneDrive, offloading the app is the most effective solution.

Here’s what you can try:

Check for offline files

In the OneDrive app, go to Offline (as shown in your screenshot).

If it’s empty, then the space is mostly cache.

Clear OneDrive cache manually

iOS doesn’t allow clearing cache from the app directly, so you need to:

Go to Settings > General > iPhone Storage > OneDrive.

Tap Offload App (this removes the app but keeps documents).

Then reinstall OneDrive from the App Store.

This will clear all cached data without deleting your cloud files.

Reduce future cache growth

Avoid opening very large files repeatedly if you don’t need them offline.

Keep the app updated Microsoft sometimes improves cache handling in newer versions.

 

Let me know how it goes, happy to help!

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