Avast Licencing for dummies

I use Avast for my MAC (Avast MAC security 2015) and I am extremely happy with it. I paid no licence.

I just installed Avast Wi-Fi Finder and Avast Secureline on my iPhone and iPad.

There are a lot of other very interesting pieces of software from Avast but after exploring the Avast site, I got really confused as to which app does what for what platform and at what cost.

Is there a simple table somewhere:
1- showing all Avast apps that are available and what platform (PC, MAC, iPhone, iPad, Android, …) each app is relevant for
2- providing licence costs for private/family as well as business users

I’d love to maximise security for all my devices and agree to paying licences but I do not quite understand where to start.

Many thanks and best regards.

https://www.avast.com
You can click on the platform to see what is available.

https://www.avast.com/faq.php
A lot of information.

https://store.avast.com
pricing and related