FlyHodler is a cloud mining services provider. With HODL contracts, the users can withdraw all its initial investment, plus mining income. It works as a bank deposit, so the users can top-up and withdraw their deposits, and their hashrate changes accordingly.
How do holder contracts work? “A holder contract is a contract in which you put your funds on hold and we do mining for you. You can withdraw your funds (plus mining income) from hold at any moment (withdrawal can take up to a week). Maintenance fee is deducted every day from your mining income. Withdrawal fee both for funds on hold and BTC balance is 0.00005 BTC. All the mined bitcoins accumulate on your BTC balance (separate from your funds on hold). You can manually withdraw your bitcoins and add them to your funds on hold.”