Apple enables iPhone users to set WhatsApp as their default calling and messaging app with the latest iOS 18.2 update.WhatsApp version 25.8.74 allows iPhone users to select WhatsApp for calls and messages worldwide.This change aligns with Apple's strategy of offering users greater customization and responding to regulatory pressure and consumer demand for choice.WhatsApp's integration as a default app on iPhones further solidifies its position as a primary communication tool globally.