Hi Martin, thank you for clearing that up.
I've used Avast for many years personally, plus helping out family and friends, the pre Windows AV scan was a tool I heavily relied on for countless users.
I have since made the purchase of Avast One which I am happy with(having a career of an ICT Network Manager).
As for the Sandbox, it was within an Avast suite(maybe) I was testing some years back, and with Avast One branded as 'the all-in-one service that delivers comprehensive protection with an award-winning antivirus, VPN, data breach monitoring, and device cleanup tools to help you stay private and safe from today’s threat' I hoped it was an included feature, and as bob3160 had stated, "Sandbox is one item that should be included", I agree with given the tools that are included in Avast One.
That being said, if Avast Sandbox is available and not to be considered as an addition to Avast One, is there different pricing for Avast Sandbox to Avast subscribers as opposed to 'off the shelf' please?