Best trustworthiness: Primedice
Low house edge: Safedice (0.5%)
Fast autobet: Coinichiwa (I can make 2 bets per second even though I am making some tiny bets)
I always hear the term 'edge'. What does it mean?
In short, it measures how much the house is taking from you in the average.
Eg 1: On Primedice, for a x2 bet, you have 49.5% chance to win. You expect to get 99% (=49.5%*2) back in the average while the house expect to get 1% from you, and so the house edge on PD is 1%.
Eg 2: On Safedice, for a x2 bet, you have 49.75% chance to win. You expect to get 99.5% back in the average while the house expect to get 0.5% from you, and so the house edge is 0.5%.
Eg 3: In European roulette (single-zero wheel), you can get x36 back when you bet on one single number. The chance for that to happen is 1/37. So you expect to get 97.3% (=36/37) back in the average while the house expect to get 2.7% from you, and so the house edge is 2.7%.