Side-by-side comparison of AI visibility scores, market position, and capabilities
NYC YC W23 DeFi mobile wallet making yield investing accessible via account abstraction; $31.3M total ($25M Lowercarbon Series A May 2025 + 2024 seed) with auto-compounding positions competing with Coinbase Wallet for mainstream DeFi adoption.
Rainmaker is a New York City-based DeFi mobile wallet — backed by Y Combinator (W23) with $31.3 million in total funding including a $25 million Series A in May 2025 from Lowercarbon Capital and others, following a 2024 seed from Starship Ventures, Long Journey Ventures, and Day One Ventures — providing mainstream users with an account-abstraction-based mobile crypto wallet that reduces the complexity of DeFi investing to a few taps, enabling auto-compounding yield positions with performance fees (similar to Beefy.finance) and planning subscription services and integrated tax reporting. Founded in 2023 and backed by Y Combinator W23, Rainmaker targets the mass market of potential DeFi participants who are deterred by wallet complexity, gas fee management, and protocol interaction barriers.
Web3 authentication and account abstraction infrastructure enabling gasless transactions and simplified dApp onboarding; ERC-4337 implementation allows dApps to sponsor gas fees on behalf of users and accept ERC-20 token gas payment for mainstream-accessible wallet experiences.
Biconomy is a Web3 infrastructure platform focused on making decentralized applications usable by mainstream audiences who are not familiar with cryptocurrency gas mechanics. Its core product implements account abstraction via ERC-4337, allowing dApp developers to sponsor gas fees on behalf of users, accept gas payment in ERC-20 tokens instead of native currency, and batch multiple on-chain transactions into a single user action. These capabilities transform the user experience from one requiring native token balances and technical awareness into something closer to a conventional web application workflow.
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