How to up date browser on iPad and iphone

The Safari browser app is updated when you update your device's system software.

Update your iPhone or iPad - Apple Support

Third-party browser are updated through the App Store:

How to manually update apps on your Apple device - Apple Support

Ehump38 wrote:

How to update browser on iPad and iPhone

There is no separate update for Safari for ipad and iphone like a MAC. IF need be it will be included in the ios update.