SubWallet | 677 followers on LinkedIn. SubWallet is the comprehensive non-custodial wallet solution for Polkadot, Substrate & Ethereum ecosystems. | SubWallet is the pioneer Web3 extension wallet in the Polkadot and Kusama ecosystem that is user-friendly and easy to use. SubWallet provides the simplest yet most secure way to connect to blockchain-based applications like DeFi and GameFi applications.