I wonder how many cryptocurrencies that can be use here? I also want to join this

as per my own understanding in the crypto riya project platform the crypto riya's wallet can hold different forms of crypto currencies in just one wallet and can hold up huge amount of crypto currencies. it is not being stated but i think that it can hold all off the crypto currency of the owner.
Based on the whitepaper it will be available to almost all type of tokens around 1,600 in existence. This is great since you need not have so many wallet just to store your different cryptocurrencies. This will also make it faster to exchange crypto to cash using cryptoriya.
That is great. I find it very confusing sometime when managing several accounts. With cryptoriya I think this will be a bit simpler and easier than what I am currently doing. Cryptoriya can also be used to exchange crypto to crypto, crypto to bank and even crypto to card. There are a lot of possibilities to watch out for with cryptoriya.