An offerwall is a monetization tool used by mobile and web applications to generate revenue by offering users the opportunity to complete specific actions in exchange for rewards or virtual currency. Offerwalls typically display a list of offers, such as taking a survey, installing an app, or signing up for a trial subscription, that users can complete to earn rewards.

In most cases, offerwalls are integrated into mobile apps and games, or websites that have a large user base. By displaying a list of offers that users can choose from, offerwalls provide an engaging and rewarding experience for users, while also generating revenue for the app or website owner.