The "standard" Greek and Hebrew keyboards accessible within iOS do not have all of the breathing marks, accents for Greek, nor the full vowel point combinations (nikud) needed for Hebrew
There is a free Greek keyboard that has all the potential accents / breathing mark combinations
https://itunes.apple...1018791342?mt=8Once installed - the "Ancient (Polytonic) Greek - AGK" keyboard will appear in the list of available keyboards under Settings / General / keyboards / add new keyboard
Davka.com has an inexpensive Hebrew keyboard with all the nikud markings
https://itunes.apple...917653147?mt=8 Once installed the "Hebrew Nikud Keyboard - Davka Nikud" keyboard will appear in the list of available keyboards under Settings / General / keyboards / add new keyboard
