I cancelled my membership over 3 months ago and they kept on taking money out of my account for months after that each time I went back into the app and cancelled and sure enough a month later they charged me again. I sent a refund request into Google Play and they rejected it citing it doesn't comply with terms and conditions. I am not waiting for them to steal another 20.99 off me for not using the app so I will close the account they are stealing from. But the app is good for learning.