@deisik, house edge in blackjack is not impossible to calculate. I have seen several sites show their house edge for it. Generally, you know it's very low if BJ pays 2:1, and if dealer has to hit on soft 17. Most BJ change the odds on 2:1, or use insurance, or other things, all to change the edge.
Didn't know the payout for blackjack could go up to 2:1. After several games I ended up with a 0.8% house edge not sure if it's correct but it should be somewhere close to that number.
I see there are 3 extra options at the bottom left the "show dealer card" activates once you reach 10% the percentage increases when you play more. What about the other 2 is there a way to activate it?
These 3 are Lifelines. No one else has them.
1. Show dealer card. After 10 bets you can use this lifeline. It is an option to see dealers other card before showdown.
2.Show next card. After 20 bets you can use this lifeline. It is an option to see next card what is coming to the table.
3.Swap one card. This is the best and hardest to get lifeline. It activates after 30 bets. With this lifeline you can change any card what is on the table to a new random card.
You can choose when do you want to use these lifelines.