Avaz has a prediction feature called Phonetic match - this predicts words based on their phonetic sound. E.g. if you type ‘fone’ Avaz predicts ‘phone’. If you type 'nife' Avaz predicts 'knife'. This feature benefits poor spellers. 

To enable this setting, tap Settings > Prediction and turn ‘Phonetic match’ to ON to enable this. 

Example 1 : Note how the word phone is prompted in the prediction bar, when you type the word fone

Example 2 - Note how the word Spaghetti is prompted in the prediction bar when the letters 'spug' are typed.