Plasma is a decentralized blockchain and application infrastructure to decentralize the centralized financial services industry (CeFi). Developers can use plasma technology to create financial tools that give consumers more control over their assets. 

The platform offers various features like Plasma Finance, PlasmaPay, etc. Plasma Finance is a Decentralized Finance (DeFi) platform that allows users to trade, store, and manage any DeFi token.). With PlasmaPay, users can process, send and receive payments regardless of card provider or bank, cross-border transactions, etc. Online businesses, mobile/web developers, and e-commerce companies are just a few examples of businesses that can benefit substantially from PlasmaPay-based products. 

PlasmaPay and PlasmaFinance's utility token is PPAY, an ERC20 token. PPAY is designed to be an all-in-one DeFi service token, enabling swaps, rewards, borrowing/lending, etc. Users can stake PPAY and earn PPAY with the platform's flexible and timely locked staking methods. Staking of PPAY also allows the community to manage the development foundation, vote on defi projects, vote on protocol changes/updates, etc. 

Furthermore, users can use the PPAY token to get short names for their PlasmaPay accounts, obtain bank cards, and earn loyalty points and cashback on card purchases. Users can trade assets between blockchains and pay fees with PPAY tokens. As mentioned on the website, the PPAY token is used as a bridge between various blockchains like Ethereum, Polkadot, Binance Smart Chain, and the zero-fee Plasma blockchain developed in-house.