Makes it very hard to cancel subscription – Piano with Songs Review

My kids really enjoy this app so I agreed to the free trial subscription and was ok with it auto renewing every week for awhile. But I find it's getting too expensive so I wanted to cancel and can't find at how to do it. Looked all over app settings and it's definitely not easy to find how to unsubscribe. Contacted Support but no reply to date. Help!
Review by Eas1125 on Piano with Songs.