Whether you're suffering from eyestrain or increasing age-related farsightedness, there are times when being able to increase the size of the text on your phone, tablet, or laptop makes all the ...

Signal, an encrypted messaging service, lets you change the font size of the app's display and messages. You can change your font size in Signal on the platform's desktop, Android, and iPhone apps.

Given how competent and powerful smartphones have become, it is easy to take for granted essential tasks they handle, like voice calling or text messaging. In the event of an internet outage, the SMS ...