Remove data and device access
1. In Offline → Remove saved previews, delete the images stored explicitly for offline browsing.
2. In Settings → Nextcloud → Sign out, remove credentials, the local database and this account's media copies. With a connection, NextGallery also attempts to revoke the app password it used in Nextcloud.
3. If you sign out offline or uninstall the app, also remove the device in Nextcloud under Settings → Security → Devices & sessions.
NextGallery does not create accounts with its provider. Your existing Nextcloud account, backups and originals belong to your Nextcloud operator. Contact that operator if you want to delete your Nextcloud account or server-side data. NextGallery does not delete server originals.