Some flaws.
Not just because its a Quran makes it a great app, but, also, because it gives nice study of the Holy Quran. However, there is some differences between the words translation by itself, and its translation in the whole Aya bellow the table. Most of the time, if not all of it, the words translation in the table is clear, and its closest the exact meaning.
Regards
AbuNazer about
Quran Study Workbook