Mobile apps are becoming increasingly prevalent, with 80% of Americans owning smartphones and two-thirds sleeping with their phones. The number of available and downloaded apps has grown exponentially in recent years. Games are the most popular app genre, followed by news and weather apps. While mobile apps can help businesses and generate revenue, their development requires significant effort and costs, and they must be designed differently for each device platform. Developers must also consider whether apps require internet access or can function offline.