What is the price of simplygon?

I heard the price of simplygon is free for indie, but what constitutes it beign indy? a Certain amount made? If thats the case whats the amount and whats hte actual cost?

Check it out for yourself: https://www.simplygon.com/#get

i did but i guess im just lookn for confirmation because it seems like it changes so often that its confusing.