You can now transform your Power App into a secure, branded business mobile app for Android and iOS. This means you may deliver your app to your licensed users with a native mobile experience and end-to-end branding.
Microsoft:
“The Power Apps mobile app for Android and iOS enables rich native mobile experiences, such as barcode scanning, dark mode, NFC tag reading, and even Mixed Reality (MR) controls. But custom branding options are limited, having all your apps in one place isn’t suitable for every scenario, and one-size-fits-all Intune governance limits the diversity of apps that can be deployed together.”
Get started:
To get started wrapping your first Android or iOS app based on one or more Power Apps canvas apps, check out the how-to instructions in the online documentation.
https://docs.microsoft.com/en-gb/power-apps/maker/common/wrap/how-to
https://docs.microsoft.com/en-gb/power-apps/mobile/run-powerapps-on-mobile