Curve Finance maximizes for efficiency around stableswaps. USDFI maximizes for efficiency around the synergies of having liquidity, lending and stablecoin in one place.
Convex is a yield optimizer for the Curve protocol with its own CVX token. In very short, CVX token holders can be bribed to vote reward liquidity providers with more rewards. The same compelling mechanism is built directly into the USDFI layer already for a more seamless experience.
Uniswap is DeFi’s original, foundational liquidity layer and AMM protocol. While USDFI technically offers the same AMM, it rewards liquidity providers with the protocol’s STABLE token emissions and its governing members with trading fees. This prioritizes fee generation over liquidity provision for a more sustainable ecosystem. Also, there is no native stablecoin or money market available on the Uniswap protocol.
…from Yearn Finance?
Yearn Finance is a DeFi yield farming optimizer. The protocol socializes gas costs, rebalances and allocates automatically for selected tokens. USDFI’s Money Legos provide a streamlined UI-Layer for selected protocols, where you can de-risk, lock-in, or boost your APY’s by having your reward tokens automatically converted to USDFI.
…from MakerDAO and DAI?
DAI is a stablecoin that is collateral-backed and maintained through a system of smart contracts. Users can generate DAI by depositing a stable or widely used cryptocurrency, such as USDC and Ethereum, into the MakerDAO system as collateral. DAI collateral consists of mostly USDC, a highly centralized custodial stablecoin, greatly limiting scalability and decentralization. In contrast, the USDFI stablecoin design can have a treasury with up to 100% decentralized, volatile cryptocurrencies and has no limitations on scalability. The trade-off is a softer peg.
Solidly launched as a very popular DEX on the Fantom chain and sported smart AMMs for correlated and uncorrelated assets; with a novel governance system called ve(3,3). Solidly ultimately proved to be unsuccessful due to a combination of various factors, including hyperinflationary tokenomics, incorrect assumptions regarding game theory, and the absence of a protocol-based risk management mechanism. In contrast, USDFI’s follows Uniswap’s and Curve Finance’s AMM designs, but with reengineered tokenomics, voting and bribing mechanisms. The novel dual-veToken design integrates seamlessly with the whole USDFI ecosystem, its game theory, and incorporates automated protection protocols.
AAVE is a decentralized non-custodial money markets platform. It allows users to deposit and lend out various cryptocurrencies and stablecoins, earning interest in return, similar to USDFI. However, it does not offer liquidity, ve-Token governance, a native stablecoin, or Money Legos.
Balancer is a decentralized AMM protocol. The main function of Balancer is to provide a platform for the creation and management of multi-asset liquidity pools with up to 8 tokens. Creating positive a feedback loop with swaps only is very challenging. This is because there is a lack of avenues to generate income through borrowing and lending of assets (available in USDFI) or to leverage tokens for greater capital efficiency.
Compound is very similar to AAVE, but differs in various technical aspects (flash loans, liquidation, penalties, LTVs etc.) Please see AAVE.