Fortmatic SDK allows you to easily integrate your app with the Ethereum blockchain, whether you already have a dApp integrated with web3 or are starting from scratch. Fortmatic provides a smooth and delightful experience for both you and your app's users. If your dApp is written using web3 and already works with MetaMask, it's super easy to integrate with Fortmatic. All you have to do is to swap your existing web3 provider with the Fortmatic provider and continue developing in the same version of web3 you use.