Yes, Call Blocker - Block Numbers offers a free version with basic features, as well as a trial period for premium features, allowing users to evaluate the app before committing to a subscription.

No, Call Blocker - Block Numbers does not require an internet connection to block calls, as its core functionality operates directly through your device's call settings. However, some features may benefit from internet access.

You can contact support or send feedback for Call Blocker - Block Numbers through the app's settings menu or by visiting the official website, where you can find contact information and support resources.

To manage or cancel your subscription for Call Blocker - Block Numbers, you can go to your device’s settings, navigate to the subscriptions section, and follow the prompts to make changes to your subscription plan.