How many coins do I need for a consistent return (staking)? In the first contact with the coin the POW method was still used, I like POS coins.
PS: It's good to know that the project continues in a constant development. I really liked the new logo!
The more coins the better. Staking rewards are random. You could get some one day, a lot another, or nothing for a couple of days, but ROI is estimated at 5 to 10 percent of wallet balance. So with 100k coins held your wallet, for example, you can expect to receive more or less between 400-800 Unify per month. If coin value someday increases to like $0.25, $1, even $10 further down the road hopefully, you would see how 400-800 Unify per month can become a significant amount.