I agree, before my friend used Dinabot on these two gambling platforms and he said it is very smooth, he didn't encounter problems.
Stake and Primedice have good services when it comes to exchanging cryptocurrencies inside the platform, it's real-time and it seems like a real exchange platform. I wonder if what third-party exchange they have used?

As I noticed, a gambling casino that supported multi cryptocurrencies and usually has this feature, an internal exchange.