SessionBox Workstation is a standalone, independent browser which has been created and supported by Box-Labs Ltd. Workstation can only be used with Workstation subscription.
You can buy the subscription on the pricing page of SessionBox’s marketing page:
https://sessionbox.io/plans/auto-renewal
You can decide whether you wish to pay monthly or buy a yearly subscription.
The subscription itself does not contain any proxies.
Two operating systems are supported, Windows and MAC OS.