USDQ is a decentralized stable coin, which is backed by bitcoin and pegged to the dollar, so 1 USDQ = $1 USD.
Kcash is a decentralized digital wallet supporting multiple blockchain assets. It allows you to store, send and receive blockchain assets safely and gives you 100% control of your assets. With Kcash you can manage all your blockchain assets and will be able to connect them with the physical world soon.