Substack does not offer a free trial, but it allows creators to set up free newsletters alongside paid subscription options for their audiences.

Yes, an internet connection is required to access Substack's platform, publish newsletters, and manage subscriptions.

You can contact Substack support or provide feedback via their help center, where you can find resources and submit inquiries directly through their support form.

You can manage or cancel your Substack subscription through your account settings on the Substack website or app, where you will find options to adjust your subscription details.