You can change the font size on your Android phone or tablet by heading to your device's Accessibility menu.

Being able to properly read the text that’s on your screen is extremely important, especially if you have trouble seeing. Our phones come with a standard font size applied out of the box, but that ...

You can change your font size in Signal on the secure-messaging platform's desktop, Android, and iPhone apps.

You can now tweak the font size within Gboard. This feature was available in beta, and it's now a part of the stable channel ...