> ## Documentation Index
> Fetch the complete documentation index at: https://help.getstudenthub.app/llms.txt
> Use this file to discover all available pages before exploring further.

# Sync problems

> What to do when sync fails, stops or iCloud is full.

You can see the sync status on the iCloud screen, under **Settings, Data and storage**: **Synced**, **Syncing…**, **Sync failed**, **Sync has stopped** or **iCloud is full**.

## Sync failed

Close StudentHub completely and open it again. A sync that fails when the app starts can take a little while to come back, so give it a few minutes. If it keeps failing, check that you are signed in to iCloud and that you have a connection.

If it still fails, write to us at [hello@contact.getstudenthub.app](mailto:hello@contact.getstudenthub.app) and tell us what the screen says.

## Sync has stopped

Restart the app to sync again.

## iCloud is full

Your content is safe on your device, but nothing syncs until you free up space in iCloud.

**1. Open Settings**

Tap your name, then **iCloud**, then **Manage Storage**.

**2. Look at what takes space**

Recordings and files take the most. Subjects, notes, tasks and cards weigh almost nothing.

**3. Free up space**

Delete what you do not need, or turn off **Sync recordings and files** in StudentHub. The recordings and files then move to this device.

## Not signed in to iCloud

Sign in to iCloud in Settings to sync. For recordings and files, also turn on iCloud Drive.

## Duplicates

If the same content appears twice, use **Check for duplicates** in Settings. StudentHub looks for content that exists more than once with exactly the same content and creation time, and keeps one of each. Notes you wrote alike at different times are not treated as duplicates. Notes, cards and other content move to the copy that stays, so nothing loses its subject or deck.


## Related topics

- [Troubleshooting](https://help.getstudenthub.app/help/troubleshooting.md)
- [iCloud sync](https://help.getstudenthub.app/data/icloud-sync.md)
- [StudentHub help](https://help.getstudenthub.app/index.md)
- [Files](https://help.getstudenthub.app/use/files.md)


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