Proton Wallet is described as 'Self-custody wallet, meaning we use end-to-end encryption to ensure that you are the only one with access to your wallet's encryption keys' and is a Crypto Wallet in the bitcoin & cryptocurrency category. There are more than 50 alternatives to Proton Wallet for a variety of platforms, including Android, iPhone, Web-based, Mac and Windows apps. The best Proton Wallet alternative is Electrum, which is both free and Open Source. Other great apps like Proton Wallet are Cake Wallet, MetaMask, Exodus and Trust Wallet.