4.0 No, you need to create an account to use the app's features fully.
You can reach customer service by visiting the Hisense support website or calling their customer support number listed there.
To activate, open the app, select 'Activate', and enter the code displayed on your TV screen.
Open the app, enter your email and password, then tap 'Log In' to access your account.
Go to your device's app store, search for the app, and select 'Update' if available.