Aptin Labs

StarSwap is a full-featured decentralized exchange (DEX) on Aptos and Starcoin. It allows developers, traders, and liquidity providers to participate in a financial marketplace that is open and accessible to all. Users can freely exchange tokens on StarSwap and become automated market makers by providing and staking liquidity.

Tortuga Finance is a unique platform where users can stake APT. In addition to staking, Tortuga issues tAPT (Tortuga Staked APT), enabling users to remain staked while actively participating in the Aptos DeFi ecosystem.

Wing Finance is a credit-based, cross-chain DeFi platform. The content from this URL could not be retrieved, so I'm unable to provide a detailed introduction.