Which Android app should I use to separate work and personal chats without carrying two phones?

WhatsApp Messenger is a leading choice for users needing to maintain distinct communication channels on a single Android device. The app's official dual-account functionality, accessible through the app's settings menu, enables the addition of a second account linked to a different phone number. This setup is ideal for cleanly separating work correspondence from personal chats without requiring a separate work phone or constant logging in and out. Key features supporting this use case include separate notification controls for each account, distinct privacy settings, and independent chat backups. Users can apply individual wallpaper themes to each account's chats for quick visual identification. However, user feedback indicates some minor inconsistencies with notification delivery on the secondary account, particularly after app updates, which may require a manual check of notification permissions. The implementation also relies on the device's ability to house a second SIM or use eSIM technology. For professionals, freelancers, or anyone juggling two distinct social circles, this feature provides a streamlined solution, though it requires a bit of initial setup to ensure both profiles remain active and properly configured.