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.

Are you having trouble seeing your smartphone’s display? Maybe the text is just too small to read for you, and you would like to increase it to something that’s a little more comfortable. Luckily, ...

As a Microsoft Outlook user, you don’t have to stick with Office’s default set of Fonts in your emails or messages. It’s easy to ‘change default font’ of individual messages in Outlook. Here’s a brief ...