WhatsApp Now Available as Default Messaging and Calling App on iPhones

The latest WhatsApp update enables global iPhone users to set the app as their default for calls and messages, marking a significant step in iOS customization.

WhatsApp users on iPhones running iOS 18.2 or later can now set the app as the default for messaging and calling functions.
This functionality, introduced in the latest WhatsApp update (v25.8.74), is available globally and no longer limited to beta testers.
Apple initially added support for third-party default apps in iOS 18.2, a feature originally intended for European Union users but later expanded worldwide.
WhatsApp is the first major third-party app to adopt Apple's API for default messaging and calling apps, replacing Apple's native Phone and Messages apps when selected.
This update reflects Apple's shift toward greater customization options and is expected to enhance convenience for users in regions where WhatsApp is widely popular.