Authentication
What is Authentication?
Authentication is the process of verifying a user’s identity before giving them access to an application, account, or specific features. In mobile apps, authentication can use an email address and password, phone number, one-time verification code, social login, biometrics, or other methods. Once authenticated, users can access personalized information and functionality associated with their account.
Why it matters
Authentication helps protect user accounts, personal information, payment details, and other data from unauthorized access. It also enables mobile applications to provide personalized experiences, such as individual profiles, order history, saved preferences, bookings, or subscription access. For apps that work with user accounts or private data, a reliable authentication process is an important part of both security and user experience.
Example
A business creates a mobile booking app where customers have personal accounts. A customer signs in before viewing upcoming appointments, changing a booking, or accessing saved information. Authentication verifies that the person requesting access is the legitimate owner of that account.
