The Text Size Change Function is available for IOS ver 6.9.0(above). (Android Coming soon).

You can increase or decrease the font size of an Event Title on the Monthly View.

 There are 5 types of font sizes: Smallest / Small (default) / Medium / Large / Largest.

 The font size can be set from the Application Settings.

-Tap  'three parallel horizontal lines' on the upper left corner.

-Tap 'App settings' 

-Tap 'Text Size' and change