A crypto wallet is a software program that stores the private and public keys of a cryptocurrency user, as well as interacts with various blockchain to enable users to send and receive digital currency and monitor their balance. Some crypto wallets are designed for a single cryptocurrency, while others can be used for multiple cryptocurrencies.

A crypto wallet app is a mobile application that allows users to manage their crypto assets on the go. It can be used to send and receive transactions, view account balances, and track the price of various cryptocurrencies. Some crypto wallet apps also provide additional features such as the ability to buy and sell cryptocurrencies, exchange them for fiat currency, or track the performance of a portfolio of crypto assets.

It is important for users to choose a secure and reliable crypto wallet app, as the private keys stored in the app grant access to the user's crypto assets and the app itself may be vulnerable to cyber attacks.