Could you please clarify if the Infinity Wallet application enables users to directly purchase cryptocurrencies? I'm interested in understanding if this wallet provides a seamless buying experience for digital assets or if users need to rely on external exchanges and platforms to make such transactions. Additionally, it would be helpful to know if the Infinity Wallet supports multiple currencies and whether there are any fees or limitations associated with buying crypto through the wallet. Clarifying these points would greatly assist me in determining the suitability of Infinity Wallet for my cryptocurrency investment needs.