# FAQ

## General

### Is Nextcloud Workspace open source?

Yes. It relies on audited open-source software to guarantee transparency and prevent vendor lock-in. As a fully managed SaaS solution, IONOS Cloud takes care of all the underlying maintenance, including server patching and version updates.

## Technical

### Which desktop and mobile clients does Nextcloud Workspace support?

In addition to browser-based access, Nextcloud Workspace provides dedicated native applications for all major platforms:

* Desktop client for Windows, macOS, and Linux
* Android
* iOS

### Can I connect external storage (for example, S3) to my workspace?

Yes, the Nextcloud Workspace architecture supports integration of external storage repositories, allowing you to map existing data sources directly into the Nextcloud interface.

## Security and privacy

### Is Nextcloud Workspace GDPR-compliant?

Yes, Nextcloud Workspace guarantees strict GDPR compliance. Because all infrastructure is owned and operated exclusively within Europe by IONOS Cloud, your data remains physically and legally protected from foreign access requests.

## Billing and plans

### How is Nextcloud Workspace billed?

For more information about billing, see [<mark style="color:blue;">Nextcloud Workspace Billing</mark>](https://docs.ionos.com/cloud/sovereign-workplace/nextcloud-workspace/billing).

### Can I increase the number of users in a Workspace after it is created?

Yes, you can dynamically increase your users at any time using the **Add users** option in the DCD.

## Nextcloud Workspace troubleshooting

### Why is file sync not working with the desktop client?

Check the following:

* Confirm the desktop client is signed in with the correct account credentials.
* Verify that the file or folder is not locked by another user.
* Check that the file size does not exceed the platform's supported limit.