GIFTO (GTO) ERC-20 tokens enable not only buying virtual gifts as its name suggests. With the help of GTO tokens, one can also monetize their content, play games, or donate. Gifto represents a decentralized Ethereum-based protocol allowing creating virtual gifts. You can buy GIFTO (GTO) on multiple exchanges for cryptos.
Siacoin is a utility token of the cloud storage platform called the Sia network. Sia is open-source and blockchain-based. The operations take place on Sia's own blockchain. The coin is used to pay for storage rent transactions. The coin is Proof-of-Work-based meaning that Siacoin can be mined. Another use for the coin is trading.
OST is currently based on cryptocurrency Ethereum protocol and serves as the currency of the OST ecosystem. The token is represented on the number of exchange platforms paired with other cryptos.