I use Hodlcoin core wallet 6.0
When I place a deposit I get a lot more interest than is predicted from the calculator in
http://hodlcoin.com/.
Why?
1% per day interest (375% APR) is paid on regular balances, and up to 2% per day interest ((750% APR)) is paid on coins HODL'd for 1 year.
No staking, mining, or counterparty is required. Interest is guaranteed by the blockchain.