Yes, Room Temperature Thermometer generally offers a free version with basic features, along with a free trial period for premium features.

No, Room Temperature Thermometer does not require an internet connection to function, as it primarily uses the device's built-in sensors to measure temperature. However, some features may require connectivity for updates or cloud storage.

You can contact support or send feedback through the app's support section, which often includes options for email support, a help center, or a feedback form.

You can manage or cancel your subscription through your device's app store settings, typically found under subscriptions or account settings. Detailed instructions are usually provided within the app.