Yes, Simple Calendar Pro typically offers a free trial period, allowing users to explore its features before committing to a subscription. There may also be a free version with limited features available.

While Simple Calendar Pro can function offline, certain features like syncing with cloud services or sharing calendars with other users may require an internet connection.

You can contact support or send feedback for Simple Calendar Pro through the app's help section, by emailing the support team directly, or by visiting the official website for additional resources.

You can manage or cancel your Simple Calendar Pro subscription through the app's settings or the platform's app store where you initially subscribed, following the provided instructions for subscription management.