Pollchain, launched in February 2021, is a social networking service that utilises 'polling' for knowledge sharing. Users can ask and answer a variety of questions, covering topics such as daily life, social issues, and business. It operates on a "protocol economic model", rewarding users with POLL tokens for participating in polls and interacting with adverts. These tokens can be used to purchase NFTs and other products on Pollchain. The platform integrates its technology with social networking, NFTs, decentralised finance (DeFi), and play-to-earn games in the metaverse. Poll results are stored as NFT metadata, and its DeFi services include trading, deposits, and staking.