People should also exercise caution to avoid becoming a victim of fraud or scams involving apps that demand large upfront investments or make unrealistic earnings promises. Before investing time or money in aplive slotsp-based businesses, it's critical to carefully investigate any prospects and carry out due diligence. Many real-life success stories exist of people who have made significant financial success through app-based earning, despite the potential drawbacks. The tale of Jan Koum and Brian Acton, who jointly founded WhatsApp—a messaging service that Facebook eventually purchased for $19 billion—is one prominent instance.