Sealed

Sealed is a privacy-first messaging stationery application built around the timeless metaphor of a physical sealed letter. Write an intentional private letter, seal it with on-device authenticated encryption, and share a unique human-typeable secret code. Your recipient enters the code to unseal and read your words. Key Highlights: • No accounts, logins, or phone numbers required • No social feeds, likes, or followers • No cloud servers storing private messages • All encryption is performed locally on your device • Messages are unlocked only with the secret code Experience intentional, quiet, and truly private communication with Sealed.