Dynamic Type and Text Sizes in Apps
Dynamic Type is the name of the iOS feature that adjusts the text size. Adjusting the size of the text isn’t universal on an iOS device. Apps that support Dynamic Type take advantage of the customizable text sizes. Text in apps that don’t support Dynamic Type will remain unchanged. Later versions of Apple apps support Dynamic Type, including Mail, Notes, Messages, and Calendar.
How to Make the Font Bigger or Smaller
To use the Text Size option to adjust the font size on an iOS device:
How to Make Text Even Larger
If these adjustments didn’t make the text large enough, use the Accessibility settings to increase the text size. This adjustment forces even larger text in Mail and other apps that support Dynamic Type and is useful when it’s difficult to read the text on a mobile device.
Other Accessibility Features to Improve Readability
Also located from the Accessibility page in the device settings is Zoom. This magnifies the entire screen. Double-tap with three fingers to zoom, and drag three fingers to move around the screen. Bold Text is another setting that makes it easier to read on an iPhone, iPad, or iPod touch. This setting makes Dynamic Type text bold. Enable Increase Contrast to make other text styling adjustments, and Reduce Transparency to reduce transparency and blurs, both of which can increase legibility.
