In October 2023, WhatsApp introduced multi-account support for Android users, enabling them to use two WhatsApp accounts on the same smartphone without relying on app clones or the WhatsApp Business app workaround.
This feature is currently unavailable for iPhone users but may change soon. According to WABetaInfo, WhatsApp tests multi-account bolster for iPhones, permitting users to work two accounts with separate numbers on one device. The usefulness is anticipated to work on iPhones essentially to how it does on Android devices.