Feature
Open Heart uses tweetnacl encryption to protect your journal entries. They're encrypted on your phone before they leave your device. Our server stores blobs it literally cannot decrypt. Not even with a court order.
Your entry exists only on your phone in plaintext.
tweetnacl encrypts everything before it touches our server. We receive a blob of characters.
During the reveal, your partner's phone decrypts it locally. The server never sees the words.
Most couples apps store your entries in plaintext on their servers. Their employees can read them. A data breach exposes them. Open Heart is different by architecture, not just by policy. We physically cannot access your data because we never have the key.
Paired, Lasting, and Relish store your entries on their servers in readable form. Open Heart is the only couples app where the company cannot read your data, even if compelled by law enforcement.
No. Your entries are encrypted on your device before they reach our server. We store encrypted blobs we cannot decrypt. We don't have your key.
Attackers would get encrypted blobs — random characters. Without your device's key, they're meaningless.
Your 24-word recovery phrase can regenerate your encryption key on a new device. Without it, encrypted entries are unrecoverable. That's the tradeoff for real privacy.
Free to start. Private by default. No partner needed.