How do they make seo groubuy website?

Hi,

I had subscribed on seo groupbuy tools because 99$ per month for ahref is too steep right now.
I used toolszap by the way.

I was wondering what are the tools needed to setup this kind of groubuy method where several people can access it through a website.

I had used digitavision but I always had to download portable firefox just to use ahref, and when there is updates or error I had to redownload it again and again which is a pain.

I attached how toolszap dashboard look like.

Are you guys familiar with the tools needed?

group buy discussions not allowed here due to the fact you
can bet a lot of tools sold here end up on group buy sites
and it takes away from those sellers revenue