Uniswap is a protocol for exchanging ERC-20 tokens on Ethereum. It eliminates trusted intermediaries and unnecessary forms of rent extraction, allowing for fast, efficient trading. Where it makes tradeoffs decentralization, censorship resistance, and security are prioritized. Uniswap is open-source software licensed under GPL.
TRON is a blockchain-based entertainment platform with its native token TRX. The mainnet was launched in 2018. The platform is supposed to be a cheap way to consume entertainment content and easily share it. TRON is capable of hosting entertainment content and DApps.