How do I clear Documents and Data on iPhone?

The most effective method is to offload and reinstall the app: go to Settings > General > iPhone Storage, tap the app, select Offload App, then reinstall from the App Store. This removes all cached data. Some apps also have in-app cache clearing in their settings. For streaming apps, delete offline downloads individually.

Why does Documents and Data keep growing?

Documents and Data grows because apps continuously cache content for faster loading. Every photo you view on Instagram, every song you stream on Spotify, and every web page you browse adds to the cache. Most apps do not have automatic cache limits, so data accumulates indefinitely until you manually clear it or reinstall the app.

What Is Documents and Data on iPhone?

Q: What is Documents and Data on iPhone?

Documents and Data is the storage an app uses beyond its base installation size. It includes cached content (images, videos, web pages the app has loaded), downloaded offline content (music, shows, files), app databases (chat history, email), preferences, and logs. It often grows much larger than the app itself — a 200 MB app can accumulate 1-10 GB of Documents and Data over months of use.

The Direct Answer

Documents and Data is the storage each app uses beyond its base installation. It includes cached content (streamed music, viewed social media posts, browsed web pages), downloaded files (offline playlists, saved documents), login sessions and preferences, and app-specific databases. The base app size might be 200 MB, but Documents and Data can grow to 1-10 GB or more. The fix is to offload and reinstall the app, which clears all cached data while preserving your login credentials.

What Documents and Data Includes

Each app's Documents and Data contains everything the app stores locally beyond its executable code:

Cache: Temporary files for faster loading — images you have viewed, videos you have watched, web pages you have browsed
Downloads: Offline content — music playlists, podcast episodes, Netflix shows, saved articles
Databases: Chat histories, email databases, contact caches
Preferences: Settings, login tokens, user configurations
Logs: Usage analytics and crash reports the app has not uploaded yet

Apps With the Largest Documents and Data

Spotify/Apple Music: 2-10 GB (offline playlists and streaming cache)
Netflix/YouTube: 1-8 GB (downloaded shows and viewing cache)
Instagram/TikTok: 1-5 GB (viewed content cache)
Slack/Teams: 1-5 GB (message history, files, images)
Safari: 1-10 GB (browsing cache — shown as System Data)

How to Reduce Documents and Data

Method 1: Offload and Reinstall

Go to Settings > General > iPhone Storage, tap the app, and select Offload App. Then reinstall from the App Store. This clears all cached data. You will need to log in again but your account data syncs from the cloud.

Method 2: In-App Cache Clearing

Some apps have built-in cache clearing options. Check the app's settings for options like "Clear Cache," "Clear Data," or "Storage Management."

Method 3: Delete Downloaded Content

For streaming apps, remove offline downloads you no longer need. In Spotify: go to a downloaded playlist and tap the download icon to remove it. In Netflix: go to Downloads and delete completed shows.

Tip: Documents and Data grows back over time as you use the app. Set a reminder to check your top 5 largest apps monthly and clear their caches. See our monthly audit guide. For general storage management, see our complete guide.

Clear the Clutter Everywhere

While you are clearing app data, clean your camera roll too. Swype Photo Cleaner makes it quick and easy.

Free · iPhone · iOS 16+ · 100% on-device, zero uploads

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What Is Documents and Data on iPhone?

The Direct Answer

What Documents and Data Includes

Apps With the Largest Documents and Data

How to Reduce Documents and Data

Method 1: Offload and Reinstall

Method 2: In-App Cache Clearing

Method 3: Delete Downloaded Content

Clear the Clutter Everywhere

Frequently Asked Questions