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Phone numbers required
Z-TEXT
Z-TEXT
Z-TEXT is a zk-SNARKs blockchain messenger built on BitcoinZ. No phone. No email. No SIM. Zero metadata. Your identity is a 24-word seed phrase — nothing else.
This is what your identity looks like to everyone else. 24 words, generated on your device, shown to no one. Hover a slot — it's still redacted. That's the point.
Most apps hide one thing and call it private. Z-TEXT removes the three separate things that can identify you.
Every message is protected with zk-SNARKs zero-knowledge proofs and AES-256-GCM, plus post-quantum ML-KEM-768 and ML-DSA-65. No one reads it in transit or at rest.
No phone number. No email. No SIM. Your account is a 24-word seed phrase generated on your own device — never sent anywhere, never stored by Z-TEXT.
There's no central database matching names to numbers to accounts. Z-TEXT never had that list to begin with — so there's nothing to leak, sell, or hand over.
| Property | Z-TEXT | Typical messenger |
|---|---|---|
| Phone number required? | No | Yes |
| Identity tied to | 24-word seed phrase, on-device | Phone number + account |
| Message content readable by provider? | No — zk-SNARKs zero-knowledge proofs + AES-256-GCM | Varies by app |
| Who can recover your account? | Only you, from your seed phrase | Company-controlled reset |
No. Z-TEXT identity is a 24-word seed phrase generated on your device. No phone, no email, no SIM card, at any point.
No. Content is protected with zk-SNARKs zero-knowledge proofs and AES-256-GCM, plus post-quantum cryptography (ML-KEM-768, ML-DSA-65).
Your 24-word seed phrase restores your messenger, password manager, and wallet on any new device.
Reading is always free. Sending requires a license code, available at z-text.com/packages.
Z-TEXT was built so it never has to know who you are — only that your message got there.
👉 No Phone. No Email. No SIM. Zero Metadata. Just Z-TEXT.