التفاح والموز: Arabic Grammar Trainer

I am new to Arabic and struggling to comprehend the grammar. I made this game to drill myself. The player must distinguish between similar phrases like "I am eating an apple", "I ate an apple", and "He ate an apple." I plan to add more levels as I learn more.

I would be very grateful if a fluent Arabic speaker could test the game and tell me what errors they find. Is it true that "You ate an apple." and "She ate an apple" are the same (أكلت تفاحة)?