I would like to have the option to purchase a family premium plan via the Apple App Store. The website offering only allows up to 5 individuals. If Tarteel were to offer a premium family plan that works with Apple’s family sharing (for however much extra is needed to cover Apple’s fees and a sixth individual), that would work out perfectly.

This method has an added benefit to the user, that all individuals would not need to click to join the plan, as it is already shared via Apple’s Family Sharing. I am personally ok to pay annually, though reading through some other feature requests shows a monthly plan would be welcome by many others.