Drip Network - Is it interest?

Please could you advise on the Crypto Project - Drip Network.

I have read the white paper and it states that rewards are sent back as dividends, which is fine. However, they have a ‘hydrate’ option which basically allows you to compound these rewards so that they are added to your initial investment and so forth. I would like to know if this is classed as interest?

https://drip.community/

Thank you

I’m also interested in Drip but I’m not sure if there is anyone here answering and addressing the forum questions.