UTRUST (UTK) is own token of the eponymous platform and used to pay for its services. The token is based on the Ethereum protocol. The cryptocurrency pairs including UTK are being traded on the number of exchanges.
Dropil (DROP) is an Ethereum token and works as a utility token for the Dropil platform. No more Dropil tokens will ever be created, which is supposed to prevent further deflation. You can buy Dropil (DROP) for cryptos (for example, BTC or ETH) with some exchange platforms.