You can ask for a full refund within 14 days of a purchase as long as none of its questions were used. After partial use, the refund is pro-rated to the unused questions. Cancelling a plan stops future charges; the current month stays active until it ends. Refunded questions are removed from the family balance.
Web purchases are refunded by Paddle, our reseller: Settings → Manage payments, or support@screen-genius.com. Purchases made in the Android app are refunded through Google Play (play.google.com → Order history), or write to support@screen-genius.com and we'll help.