Open Camera is completely free to use with no trial period; it is an open-source app that provides all its features without any cost.

No, Open Camera does not require an internet connection to function. It can be used offline, allowing you to take photos and videos without any internet access.

You can contact Open Camera support or send feedback through the app's official GitHub page, where you can report issues or suggest improvements, as well as find relevant documentation.

Since Open Camera does not have a subscription model, there is no need to manage or cancel a subscription. Users can simply uninstall the app if they wish to stop using it.