You can use the free version or the unlimited version of Kaspersky VPN Secure Connection.
When using the free version:
When the secure traffic limit is exceeded, the secure connection is terminated. The app notifies you when your secure connection is disabled. You can wait the time specified in the main app window and then re-establish a secure connection. The amount of used secure traffic displayed in the app may slightly differ from the amount actually used.
The amount of available secure traffic doesn't affect the amount of internet traffic available from your mobile operator. You can continue using the internet after the secure traffic limit is exceeded, but your data won't be secured by Kaspersky VPN.
You can get unlimited secure traffic by switching to the unlimited version of Kaspersky VPN Secure Connection.Page top