How is Texrr different from Signal or WhatsApp?

Signal and WhatsApp are end-to-end encrypted but messages still pass through servers in encrypted form. Texrr is device-to-device encrypted — messages travel directly between devices via WebRTC peer-to-peer channels. No server receives, stores, or relays message content, even in encrypted form.

What does Texrr's server store?

Email, username, and public key. That is everything. No message content, no encryption keys, no metadata, no contact lists, no conversation logs.

What happens if I lose my device?

Without a local backup, your messages are gone. Texrr cannot recover them because Texrr never had them. This is by design — it is the core privacy guarantee.

How do I add contacts on Texrr?

QR code exchange only. Both users must scan each other's QR codes. There is no phone number matching, no username search, and no contact directory. The server never learns who is connected to whom.

What is hash chain verification?

Every message includes the hash of the previous message, forming an unbroken chain. Every 50 messages, Texrr automatically verifies the chain. If any message has been altered, the chain breaks and both parties are immediately alerted.

Can Texrr be self-hosted for enterprise use?

Yes. Enterprise Texrr supports three deployment models: private cloud (AWS, Azure, GCP), on-premise, and fully air-gapped. The cryptography and P2P messaging are identical to the consumer app. Only the infrastructure layer changes.

Texrr — Device-to-Device Encrypted Messenger

How it works

Three layers. Zero compromise.

Encrypted on your device

AES-256 encryption runs locally via an immutable binary. Keys generated on device, stored on device. Never transmitted, never shared with any server.

Sent device to device

Messages travel directly between devices via WebRTC peer-to-peer channels. No server receives, stores, or relays your message content. Contacts are exchanged via QR code only — no search, no directory, no phone number matching.

Verified mathematically

Cryptographic hash chains and Merkle proofs create tamper-proof records. Every 50 messages, integrity is verified automatically. Any alteration triggers an immediate alert.

Built for

Security without compromise.

Compliance without compromise.

Your team's conversations are protected by mathematics, not policies. Trade secrets, client communications, strategic discussions — encrypted on device, verified by hash chains, invisible to any server.

Zero server liability — nothing to breach because we hold nothing

Tamper-proof audit trail — cryptographic hash chains prove conversation integrity

GDPR / HIPAA friendly — we hold no patient or client data to regulate

Self-host option — run your own auth server for complete infrastructure control

What your IT team hears

"Messages are AES-256 encrypted on device with keys that never leave the device."

"The server only stores email, username, and public key. Two database tables. No message table exists."

"No user directory. Contacts exchange via QR code only."

"Hash chain verification provides a mathematical audit trail without exposing content."

Zero-trust communications.

Chain of custody built into every message. Five independently auditable binaries. No back doors, no recovery mechanisms, no server-side exposure. Nothing to subpoena because nothing exists to subpoena.

Chain of custody — every message mathematically linked via hash chains and Merkle proofs

Five auditable binaries — immutable Go executables, independently verifiable

Self-host everything — run auth on your own infrastructure, air-gapped if needed

No recovery by design — we cannot access your data, even under legal order

Security posture

"Device-to-device via WebRTC. No message relay server."

"No user directory. QR code contact exchange only."

"Tamper detection triggers on any hash chain inconsistency."

"Lost device without user-managed backup = unrecoverable. By design."

Private messaging that means it.

Your conversations go directly from your device to theirs. No server reads, stores, or routes your messages. If someone takes over an account, mathematical verification catches it. Your data stays yours — literally.

Journalists — protect your sources with mathematical proof of authenticity

Lawyers — privileged communications that are actually privileged

Activists — no server to raid, no data to seize, no logs to subpoena

Everyone — your conversations are nobody else's business

The simple version

"Your messages go directly from your phone to their phone."

"No company — not even us — can read what you say."

"No one can message you unless you share your QR code with them."

"If someone hijacks an account, math catches it."

"Back up your data or don't. We never have a copy."

Architecture

What the server knows.

Server stores

Your email

Your username

Your public key

Two database tables. No message table exists.
No user search. No directory. QR code only.
Open source. Self-hostable.

Server never sees

Your messages (encrypted or otherwise)

Encryption keys or nonces

Hash chains or Merkle proofs

Vault data or backups

Conversation metadata or logs

Lost device without backup = lost data.
That's not a bug. That's the promise.

Open Technology

Five binaries. All on your device.

🔒

LayerOneL

AES-256 Encryption

⛓️

ledger-memo

Hash Chain Ledger

🌳

MerkleProof

Merkle Tree Proofs

📨

texrr-messenger

Message Queue

🛡️

verify-user

Chain Verification

Immutable Go executables. Stateless — each invocation starts, processes, returns JSON, exits.
Independently auditable. Runs entirely on your device.

Personalize

Four looks. One principle.

Choose how your messenger feels. Security doesn't change.

Midnight

Technical

Clean

Professional

Neon Synth

Cyberpunk

Meadow

Calm

The promise

Texrr cannot read your messages.

Texrr cannot recover your data.

Texrr cannot hand over what we don't have.

Back up your vault. We won't remind you twice.

Get Texrr.

Your device. Your data. Mathematically proven.

App Store Soon Google Play Soon

Ages 18+ · $4.99/year or $29.99 lifetime · Self-host available

Your messages. Your device. Mathematically proven.