Yes, startups can build a Web3 wallet on their existing blockchain ecosystems. In fact, this is often the most practical approach. Established blockchains already provide infrastructure, developer tools, and active communities, which makes development faster and more cost-effective.

By using existing ecosystems, startups can integrate with smart contracts, decentralized applications, and token standards without building a blockchain from scratch. This also improves compatibility and user trust.

Startups can focus more on wallet features such as security, user experience, and multi-chain support while depending on the blockchain’s network for transactions and data. This approach helps launch quicker and scale more easily.

Source Link: https://www.hashcodex.com/web3-wallet-development-company