Dai is decentralized and backed by collateral. The Maker Protocol, which allows anyone anywhere in the world to generate Dai, aims to facilitate greater security, transparency, and trust.
Dent (DENT) is an Ethereum token listed by multiple exchanges. It is the utility token of the Dent telecommunication company. As of now, the Dent apps enable worldwide calls with 85 countries.
Ripple is a global payment protocol aimed to provide fast transactions and cheap payments internationally. The network uses a digital currency known as XRP (sometimes it's referred to as Ripple). Unlike other cryptocurrencies Ripple is not aimed to replace banks, rather this project is created to improve the work of banks (including transactions between different banks) via blockchain solutions.
BOScoin (BOS) cryptocurrency is listed on the number of exchanges. BOScoin operates on its own Mainnet. The BOScoin team has introduced both wallet for Android devices and web wallet. With the help of the “Secret Seed”, one can export and import their account.