Why can’t I ad difficult word to my list in the iOS app. In fact several of the Pro features does NOT Work on iPad or iPhone. There are hardly no difficult words appearing.
I am learning antient greek (Sorry for bad spelling - I am Danish 
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We’ll be doing some changes in the future for iOS difficult word feature. Sadly, iOS doesn’t allow you to manually add words to the difficult word lists.
Thank you for a Quick anser
When fix this bug?
There is a discrepancy between the application and website which we are still reviewing. iOS doesn’t have the ability to manually add words to the difficult words lists.