Just looking at the pricing of the Zoho Projects  https://www.zoho.com/projects/zohoprojects-pricing.html Is that price per user? 

Q about pricing:

If I set up the project and invits 5 users for the projects. 

Do I need to pay for $20 x 5 users - $100? if the project exceed to 1 free offer? 

Or just simply I pay $20 and invited our teammates for free?

Another Q about price:

I am setting up projects for the company I work for, but the company is in charge for payment. Is there option to pay by them?