Yes, Camera Filters and Effects usually offers a free version with basic features, and it may also provide a free trial period for users to test premium features before subscribing.

Most features of Camera Filters and Effects can be used offline, but some functionalities, such as downloading additional filters or sharing images, may require an internet connection.

You can contact support or send feedback through the app's help section, which usually provides options for emailing the support team or accessing FAQs for assistance.

You can manage or cancel your subscription through the app store settings on your device, where you can find your subscription details and make changes as needed.