Useful for keeping work and personal separate
If you've been logging in and out of the same messaging app to switch between a personal and a work account, a dual-app feature lets you keep both logged in at once, distinguished only by icon, without any of the back-and-forth.
You'll need a second account first
This feature only clones the app, not the account — if you don't already have a separate account for the second use case, you'll need to create one with a different phone number or email before setting up the clone.
Frequently Asked Questions
Does every phone support this feature?
Most recent Android phones from major manufacturers offer some version of it, though the exact menu name and location differs by brand.
Can iPhone users run two accounts of the same app?
iOS doesn't support native app cloning, so iPhone users typically need a second device, like a spare phone or tablet, to run a second account of the same app.