You can request account deletion directly from the FlashNote app:
After requesting deletion, you have a 7-day grace period to change your mind. Simply log back in during that time to cancel the deletion.
After 7 days, your account and all associated data — including progress, streaks, gems, compositions, and push subscriptions — will be permanently deleted.
Can't access the app? Contact us at support@flashnote.app to request manual deletion.