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How to Free Up Outlook and OneDrive Storage on iPad

Rana GarciaRana Garcia Oct 23, 2026 869 views

Question details

The user needs to reduce the local storage space consumed by the Outlook and OneDrive apps on their iPad.

How to Free Up Outlook and OneDrive Storage on iPad
Product
Microsoft Outlook and OneDrive
Device & OS
iPadOS
Scenario
Managing iPad storage when cloud-based productivity apps consume several gigabytes of local space.
Observed behavior
Despite being cloud-based applications, Outlook and OneDrive use a significant amount of local storage (e.g., 2.1 GB and 3.2 GB respectively) for cached emails, attachments, and offline synchronization data.
Before you start

Before clearing app data or reinstalling, verify that your iPad is connected to the internet and ensure all important recent emails and files have successfully synchronized to the cloud.

Solution 1Recommended

Clear Offline Files and Reset App Cache

Manually remove files set for offline use in OneDrive and reset your account in Outlook to clear accumulated cache data without deleting the apps.

Cloud apps automatically cache data to improve performance, but you can manually manage offline files and force a cache reset through the in-app settings.

1
Clear OneDrive offline files

Open the OneDrive app, go to the 'Me' tab, select 'Files Available Offline', and uncheck or remove files that you no longer need stored locally on your iPad.

2
Reset your Outlook account

Open the Outlook app, tap your profile picture or icon, navigate to Settings, select your email account, and tap 'Reset Account' to force a restart and clear the local cache.

Clear Offline Files and Reset App Cache
Free Microsoft Office alternative

Save iPad Storage with the Lightweight WPS Office

If standalone Microsoft applications are taking up too much storage on your iPad, consider switching to WPS Office. It provides an all-in-one, highly storage-efficient suite that minimizes local caching while remaining fully compatible with Microsoft formats.

  1. 1. Install WPS Office: Download WPS Office for free from the App Store on your iPad.
  2. 2. Connect cloud storage: Open WPS Office, navigate to the Cloud or Files tab, and log into your preferred cloud storage services.
  3. 3. Edit efficiently: Open, edit, and save your Microsoft Office files directly in the cloud without accumulating massive local app caches.
All-in-one suite replaces multiple heavy applications by combining Word, Excel, PowerPoint, and PDF tools.Fully compatible with Microsoft Office file formats, including .docx, .xlsx, and .pptx.Lightweight architecture significantly reduces local storage consumption and background caching on your iPad.Seamlessly connect your existing cloud drives directly within the app to avoid heavy local syncing.
microsoft office alternative - wps office

Frequently Asked Questions

Why do cloud apps like OneDrive and Outlook use so much local iPad storage?

To improve overall performance, offline accessibility, and loading times, these apps automatically cache recently accessed files, emails, and attachments locally. Over time, this cached data can accumulate and consume multiple gigabytes of local storage.

Will deleting the OneDrive app from my iPad erase my cloud files?

No. Deleting the OneDrive app only removes the application software and its local cache from your iPad. Your actual files remain safely stored and accessible in your remote Microsoft cloud account.

How can I check the exact local storage used by Outlook and OneDrive?

Go to your iPad Settings, tap 'General', and select 'iPad Storage'. Scroll down the list of installed apps to find Outlook and OneDrive; tapping on them will display the exact amount of local space they are consuming.