All the answers to your questions about Penamo are here.
Yes, thanks to Trizbi's software, you can define as many supplier types as you want, without any quantity limitations.
Yes, you can access a list of your purchased products with the Purchase Management module. You can access details such as unit price and quantity of products; and customize reports according to daily, weekly, monthly and annual periods.
Yes, you can match your products with suppliers by activating the "Use supplier-product matching when selecting suppliers" feature.