How to seal a private note with Quantext and share the key separately

Type the note, pick a labeled key, copy the sealed envelope, paste it into your existing thread, and send the secret on a different path.

Key takeaways

Create or pick a labeled key before you seal anything you care about.
Copy the envelope into SMS or email — Quantext does not send it for you.
Share the key out of band so the ciphertext and the secret do not travel together.
The other person unlocks in Quantext with the matching labeled secret.

Two channels beat one leaky thread

If the sealed text and the password sit in the same chat, you only hid the contents from a glance. Quantext is built for the split: envelope in one place, key in another.

A simple loop

Open Quantext and choose (or create) a labeled key you both will use.
Type the note and encrypt it on the device with AES-256-GCM.
Paste the sealed envelope into the SMS, email, or chat you already use.
Share the key nickname and secret through a call, in person, or another channel.

Keep nicknames off the shoulder

Premium can add a vault passphrase that blurs key nicknames from casual shoulder-surfing. Free users still get up to four usable labeled keys. Get Quantext on Google Play.

Frequently asked questions

How do I share a Quantext note?

Seal it in the app, copy the envelope, paste it into another app, and give the recipient the matching key on a separate path.

Can the other person unlock without Quantext?

They need the same sealing format and key. In practice both people use Quantext on device rather than a hosted inbox.

How many keys can I keep for free?

Free users can manage up to four usable labeled keys. Premium unlocks unlimited key storage and a vault lock.