The cost to develop an app like WhatsApp depends on the range of features, platform support, and the level of backend infrastructure required to support real-time communication at scale. Core functionalities such as user registration via phone number, secure messaging, multimedia sharing (photos, videos, voice notes), group chats, voice and video calling, and push notifications form t... https://usmsystems.com/how-much-does-it-cost-to-develop-a-social-media-app/