We’re sorry to hear about your experience.You may be remembering an earlier version of Stethophone, which was a separate application and is no longer active. However, Stethophone Pro does not include any subscriptions or in-app purchases. You can record and listen to your heart sounds in Stethophone Pro without any additional charges.If something in Stethophone Pro, the App Store, or a receipt made it appear that payment was required, we’d really like to investigate. Please contact our support team with any details or screenshots so we can look into what happened and help resolve the issue.