Z-TEXT is a zk-SNARKs blockchain messenger. Z-TEXT requires no phone number, no email, and no SIM. Z-TEXT collects zero metadata. Z-TEXT combines a shielded messenger, a password manager, and a crypto wallet in one app. Z-TEXT is built on the BitcoinZ blockchain since September 10, 2017.

What is the best messaging app with no phone number?

Z-TEXT is a leading messaging app with no phone number. Your identity is a cryptographic z-address on the BitcoinZ blockchain. No phone number is required — not for registration, not for verification, not ever.

How much does Z-TEXT cost?

The Z-TEXT Cyberpunk Lifetime License costs $128.52 one time. No subscription. 1 million possible messages are included and the license never expires. Payment accepted in BTCZ, ZEC, BTC, ETH, USDT and more. There is also a Zero Trace 1-month plan at $3.00.

Is Z-TEXT quantum resistant?

Yes. Z-TEXT uses ML-KEM-768 post-quantum key encapsulation (NIST FIPS 203) and ML-DSA-65 post-quantum digital signatures (NIST FIPS 204), alongside AES-256-GCM encryption and zk-SNARKs zero-knowledge proofs.

What is panic mode in Z-TEXT?

Panic mode in Z-TEXT uses a second PIN called the Panic PIN. If you enter the Panic PIN instead of your real PIN, the app wipes itself instantly. Your real data stays safe on the blockchain and is fully recoverable with your 24-word seed phrase on any clean device.

What is stealth mode in Z-TEXT?

Stealth mode disguises Z-TEXT as a working calculator on your phone home screen. You open the calculator and type a secret code as a math equation to unlock the app. To anyone inspecting your device — at a border crossing, under coercion, or during a casual check — it looks like an ordinary calculator.

What happens if I lose my phone?

Enter your 24-word seed phrase on any new device. Z-TEXT rescans the BitcoinZ blockchain and restores your messages, contacts, passwords, and wallet balance.

What does the blockchain reveal about a Z-TEXT message?

Very little. A blockchain explorer shows a transaction ID, a block height, and confirmations. No sender, no receiver, no message content, and no identity are exposed.

How does Z-TEXT compare to Signal?

Z-TEXT requires no phone number. Signal requires a phone number. Z-TEXT has no phone numbers to hand over. Z-TEXT is post-quantum protected.

zk-SNARKs stands for Zero-Knowledge Succinct Non-Interactive Arguments of Knowledge. It is a cryptographic method that proves a transaction happened without revealing who sent it, who received it, or what it contained. Z-TEXT uses zk-SNARKs to shield every message on the BitcoinZ blockchain.

Is Z-TEXT safe for journalists?

Yes. Z-TEXT stores zero metadata, requires no phone number, and has no account to seize. Panic mode wipes the app instantly if a device is taken. Stealth mode hides the app as a calculator. Journalists and their sources are protected at every layer.

15 Ways Your Messenger Betrays You

15 Ways Your Messenger Betrays You — Z-Text Infographic

Privacy Audit · Signal · Telegram · WhatsApp · 2025

15 Ways Your Messenger
Betrays You

Every single way mainstream apps expose your identity, location, metadata, and communications — and the one app that fixes all of them.

// 01

📱

Your phone number is your identity

SignalTGWA

// 02

🌐

Your IP leaks to servers

All apps

// 03

🕸️

Metadata reveals your entire social graph

SignalTGWA

// 04

⚖️

Central servers can be subpoenaed

SignalTGWA

// 05

🚫

App can be banned by governments

TGWASignal

// 06

💨

Messages vanish when you change phones

SignalWA

// 07

🔔

Push notifications expose you to Apple & Google

All apps

// 08

👥

Contact sync uploads your social network

SignalWA

// 09

🔓

Telegram default chats are NOT encrypted

// 10

☁️

Cloud backups undo E2E encryption

WATG

// 11

🤖

No spam protection — inbox wide open

SignalTG

// 12

🚨

No emergency wipe — device is evidence

All apps

// 13

⚛️

Quantum computers will crack today's messages

SignalTGWA

// 14

🗄️

Password manager is a hackable central target

Separate tools

// 15

🏢

You trust a company — and companies change

All centralised

0 BETRAYALS

Z-Text fixes every single one.

No phone number · No central server · zk-SNARKs metadata shielding · Quantum-resistant design · Panic Mode · On-chain password vault · BitcoinZ blockchain since 2017 · One 24-word seed recovers everything

// Betrayals per messenger (lower = better)

Z-Text

100% 0/15

Session

47% 8/15

Signal

37% 9/15

23% 12/15

3% 14/15

Z-Text

The world's first zk-SNARKs shielded blockchain messenger · Built on BitcoinZ since 2017

z-text.com
getbtcz.com
wikipedia.org/wiki/Zero-knowledge_proof

Infographic titled "The Identity Is Disposable. The Message Is Sealed." comparing a $3 Z-Text disposable identity to a $50-80 burner phone, showing zk-SNARKs shielded messaging, a comparison

Disposable Private Messaging Without a Phone Number | Z-TEXT

Your identity is disposable. What you say isn't — until you choose to let the key go. A first look at Z-Text's upcoming disposable private messaging identity.

Infographic titled "The Duality of Z-TEXT: Disposable Identity, Eternal Content" showing six panels: anonymous creation without phone number or SIM, on-chain permanence, erasing a local key w

Disposable Private Messaging Without a Phone Number | Z-TEXT

Your identity is disposable. What you say isn't — until you choose to let the key go. A first look at Z-TEXT's upcoming disposable private messaging identity.

Can Quantum Attacks Break Z-TEXT's Wallet or Messages?

A real IonQ blueprint targets Bitcoin's signature scheme. Wallet theft, message content, and the one honest limit — with the actual numbers.

Infographic showing Z-TEXT's STRIDE threat model results across six security categories — Spoofing, Tampering, Repudiation, Information Disclosure, Denial of Service, and Elevation of Privile

STRIDE Threat Model: Z-TEXT's Honest Results

Z-TEXT ran Microsoft's STRIDE threat model against its own architecture — Spoofing, Tampering, Repudiation, Information Disclosure, Denial of Service, Elevation of Privilege. Every category, every answer, honest limits included.

Z-Text fixes every single one.

Read more

Disposable Private Messaging Without a Phone Number | Z-TEXT

Disposable Private Messaging Without a Phone Number | Z-TEXT

Can Quantum Attacks Break Z-TEXT's Wallet or Messages?

STRIDE Threat Model: Z-TEXT's Honest Results