I believe Coin Hi low game on freebitcoin is rigged as I have lost a steak of 12 games in a row. I bet on Hi each time while doubling my bet and lost all of my balance. What are odds to get 11 Lo in a row with 50% probablity?
if you use the martingale technique make sure you have enough money, I used to play HI and LO there but now I'm more interested in sports betting, after all their game is quite fair maybe you need another strategy to play it