A mobile app is a software application designed specifically for short, wireless gadgets such as smartphones, tablets, and smartwatches rather than desktops or laptops. This article discusses popular mobile apps and mobile apps' global market value. Popular Mobile Apps Mobile apps are made and updated based on each mobile device's current and future limitations. Some of the popular mobile app services in 2023 are discussed below. WhatsApp WhatsApp is a free cross-platform messaging service, and it was first launched in February 2009. WhatsApp is an international public freeware, cross-platform, centralized instant messaging (I.M.), and voice-over-IP (VoIP) service owned by U.S. tech...