Yes, Fabulous Files - Clean&Booster offers a free version with limited features, along with a trial period for its premium features to allow users to experience the full functionality before committing.

While some features may utilize an internet connection for updates or additional functionalities, the core cleaning and boosting features can typically be used offline.

For support or feedback, users can typically reach out via the app's support section or visit the official website for contact information and assistance.

You can manage or cancel your subscription through your device's app store settings, where you'll find options to modify your subscriptions under your account settings.