Businesses use this marketing tactic to boost app visibility & grow their user base by encouraging word-of-mouth advertising. These apps are available in many differentall game app download categories, such as gaming apps, shopping platforms, and cashback services. They are frequently promoted as ways to make money passively or get incentives for sharing content on social media. Refer-and-earn apps can offer users discounts on goods & services or additional income, but it's important for users to proceed with caution.