Dropbox: Secure Cloud Storage offers a free version with limited storage space, allowing users to explore its features, while a free trial may be available for certain premium plans.

While Dropbox: Secure Cloud Storage primarily requires an internet connection for uploading and syncing files, it also offers offline access to files that have been previously downloaded to your device.

You can contact support for Dropbox: Secure Cloud Storage through their Help Center, where you can find resources, submit a support request, or provide feedback on your experience with the app.

You can manage or cancel your Dropbox: Secure Cloud Storage subscription through your account settings on the Dropbox website or app, where you can view your billing information and make changes as needed.