I am wondering some ICO's accept only ETH. Some accepts BTC, ETH, LTC and other cryptocurrencies as well. Does accepting more currencies in ICO plays a roles in its success.
Also Ethereum's smart contract are built for accepting only ETH. How other ICO's are accepting multiple cryptocurrencies and pays tokens accordingly? Do they have to maintain a sheet of who pays in what currencies in a sheet and allocate tokens accordingly. It seems to be a hard manual process.
This kind of ICO that accepts multiple currency targets all audiences. It gives a better impact than just accepting one currency since investors have different coins or tokens in their hands. The transaction is done automatically, I sure they program a script to records all transactions and calculate them. Within the platform where people paid, they have a built in wallet and investors need to setup an account. In that platform the token is distributed depending on how much they bought.