If you have full app access: please email us at support@tm.community to delete your account. We'd really appreciate the opportunity to hear about your experience with the Transcendental Meditation app and understand your reason for canceling.
If you signed up and created your account in the app: you can delete your account directly in the app. Go to Profile > Settings > Account details > Delete account
For information on how account deletion impacts your TM app Supporter subscription, please review the article: TM app Supporter program—subscribe, manage, and troubleshoot.