Hi ,
I always want to find a way to make my bitcoin work for me (and earn more bitcoin PASSIVELY), and this looks great!
These guys - one of the big 5 global bitcoin exchanges no less
Pay you interest on the bitcoin in your wallet.
This is NOT an investment, you are not "investing" in a contract.. you just simply store your bitcoin with them and earn interest, you can cancel at ANY TIME and withdraw your bitcoin and interest earnings.
It's super simple to setup, I've put together a couple of screenshots and a step by step guide for you.