Are you having some trouble reading the text on your iPhone? Buried in the Accessibility tab of the Settings app, Apple has included a setting that’s disabled by default called Peek Zoom.
This allows you to zoom into any screen in iOS by pressing hard on the screen. If you lessen the force on the display, the screen will zoom-out
The zoom is controlled via the Zoom Controller, that appears when Zoom and Show Controller is enabled.
To begin using the option, navigate to Settings > General > Accessibility > Zoom and then switch on Zoom and Show Controller.
