A digital wallet, also called "e-wallet" or "digital cash register" usually refers to a computer program, online service, or web-based application that lets one party to perform electronic transactions with another party bartering non-cash items for services and goods. These can either be traditional keycards or smart cards used in ATM machines. The internet has now made it easy to access such a service anywhere in the world. The most popular are operated by online casinos and online poker rooms. This service is very useful for making purchases online, receiving and sending payments, and managing one's money. It is also used as a tool for conducting safe transactions for cash, goods, and services among friends and relatives. The most popular use is probably for online gaming and online shopping. Digital wallets, like other web-based services like checking accounts, give users a virtual credit or debit card. The user stores the digital wallet details in a secure online location, and uses this stored debit card to make purchases or transfers of funds from and to any account. In order to access their account, users have to provide security credentials by signing up with a digital wallet provider. The digital wallet provider acts as a bank and protects the user's account from unauthorized access. The digital wallet provider stores the user's information and uses it to hold funds for their account. Funds are transferred to the user's bank account when they sign up with a digital wallet provider. Must Read: Which Cryptocurrency is Right For You? Users usually use their debit or credit cards to make purchases. However, these cards often will not be accepted at all gas stations, vending machines, or some other locations that take plastic. For those who use cash, the problem is even worse because cash can only be used inside the store it was purchased in. To solve this problem, digital wallets offer a way to complete a transaction outside the store. This process is called "mobile checkout." When shopping with digital wallets, users scan their debit or credit cards through the app and enter the payment information. Mobile wallet apps make it easy to pay for products and transactions. They work similar to an Internet payment processor, but are designed to work with cell phones. An example of a mobile wallet service includes Brunch, PayPal, and Xoom. These providers allow customers to complete their purchases without a computer or phone. A customer only needs to download the mobile wallet app, create a username and password, select their purchases to pay for them, and then send the payment to the shopping cart. Payments sent through a mobile wallet are often processed immediately. Other examples of digital wallet payments include Paywave, Google checkout, Linked checkout, and Brunch. Digital wallets also allow customers to use their debit or credit cards to complete their online orders. Digital wallets allow users to complete their debit card transactions by scanning the barcode or accessing the payment information on their credit card. Digital wallet app makers integrate merchant payment information into the app to give customers a secure, private checkout experience. In order to gain access to merchants payment information, customers must install the app on their phone. Once installed, the information can be scanned at any time to gain access to payment information. For example, when purchasing items from a grocery store, a user scans the digital wallet's barcode, and the app's mobile checkout displays the amount of money in the check box. Merchants offering digital wallets also provide users with access to their store's customer service number and online help. Most digital wallets follow the payment protocol used in the Internet. Common interchange-plus methods include PayPal, Google checkout, and Brunch. Most Internet-based digital wallets allow both credit card and debit card payments. Digital wallet services offer several other benefits, including online check processing, allowing for convenient electronic checks and savings, as well as online shopping cart integration.