Rosetta — Local message encryption
Rosetta is an iOS app with an encrypting keyboard. It lets you encrypt and decrypt messages using a shared phrase chosen by you and your recipient. Encryption runs locally on your device.
What you can do with Rosetta
- Encrypt messages before pasting them into any app where you can type.
- Decrypt incoming messages by pasting them into the Decrypt screen.
- Use the Rosetta keyboard directly in other apps (with “Allow Full Access”).
- Save the phrase locally on the device — only if you enable the Pro feature.
Plans
Free. Free: unlimited decryption, 3 encryptions per day, phrase entered manually.
Pro. Pro: unlimited encryption, phrase saved on the device, full keyboard. 4,99 €/month or 39,99 €/year. 3-day free trial when available.
Documents and support
Rosetta encrypts locally on your device. No server, no AI, no tracking.