I used 14 secret codes to unlock menus of settings on my iPhone and Android - how it works

Dial these secret short codes on your phone to unlock hidden settings, secret menus, and powerful features most users never discover.
CNET

Don't Remember Someone's Number? Here's How to Use T9 Dialing on iPhone Instead

I don't know my wife's phone number. If I needed to call her and I didn't have my iPhone, I wouldn't be able to reach her. And according to a poll by WhistleOut, I'm not alone. About 17% of ...
How-To Geek on MSN

These Are My 12 Favorite Uses for the iPhone Action Button

The Action Button is a feature of the iPhone 15 Pro or iPhone 16 and later, appearing on the left-hand edge of the device if ...
CNET

Before Installing iOS 26 on Your iPhone, Change These 10 Settings in iOS 18

Waiting for others to kick the tires on Apple's newest iPhone system? In the meantime, make sure you've set up these features and options.