Electrum is described as 'Easy to use Bitcoin client. It protects you from losing coins in a backup mistake or computer failure, because your wallet can be recovered from a secret phrase that you can write on paper or learn by heart' and is a very popular Crypto Wallet in the bitcoin & cryptocurrency category. There are more than 50 alternatives to Electrum for a variety of platforms, including Android, iPhone, Web-based, Linux and Mac apps. The best Electrum alternative is Proton Wallet, which is both free and Open Source. Other great apps like Electrum are Cake Wallet, Exodus, Feather Wallet and Blockchain Wallet.
It's exchange, not wallet.