on android, TextView’s have a BREAK_STRATEGY_HIGH_QUALITY as default BreakStrategy set (https://developer.android.com/reference/android/widget/TextView.html#setBreakStrategy(int)).
iOS has a hyphenationFactor property with a default value of 0.0. This means hyphenation is disabled (https://developer.apple.com/documentation/uikit/nsmutableparagraphstyle/1535553-hyphenationfactor):
Is it possible to set the hyphenationFactor to 1.0 on android forms lables for ios?
Source: Xamarin.ios Questions