I would remove the current trailer you have up on Youtube and replace it with something a little bit more professional.
You're holding your phone wrong (vertical video) and you could just record the screen instead of filming it.
Looks like the current trailer (the one posted here), it's actually hidden on their channel (only those with the link can see it) and there's "
another one (a professional trailer)".
what can we do with game coins after earning them? will it be possible to change them on something?
You can exchange/sell your cryptos for "$" (in-game money) > Use those "$" to upgrade (for tap mining game) or unlock other coins.
On a side note: Why there's no "exit button"?