Onboarding in mobile apps refers to the process of introducing new users to the app and helping them understand how to use it. The goal of onboarding is to make the app easy to learn and use, and to encourage users to continue using the app and engaging with its features. Onboarding typically involves a series of steps or screens that guide users through the app, explaining its features and functionality, and providing tips and tutorials on how to use it. Onboarding can also include personalized recommendations or suggestions based on the user's interests or past interactions with the app.