Does anyone know of a convenient app to pass the time in the evenings?

I was recently visiting relatives in Delhi, and my brother showed me gullybet. I was interested because I had wanted to try roulette for a long time. The atmosphere is very similar to the real thing; it feels like you're sitting at a table in a casino. I made a couple of bets for fun and was pleased with the process. Everything works without delays, which is important to me.