STATUS: OFF-GRID // V1.0

Mesh.
Encrypt.
Survive.

> Local-first routing protocol.
> Zero cellular infrastructure required.
> AES-256 encrypted peer-to-peer relay.

0
Servers
256
Bit Encryption
16
Max Relay Hops
100
% On-Device
Use Cases

Built for when it counts

Designed for the moments every other app fails.

🎪

Festivals & Events

Mesh bypasses saturated towers entirely

🏔️

Remote Areas

Device-to-device over Bluetooth + WiFi

🌪️

Disasters

Self-healing - no single point of failure

🔒

Privacy First

Zero servers, zero data collection

🚢

International Travel

No carrier or roaming needed

Architecture

Five steps from tap to delivered

No configuration. No setup. Open the app and it starts working.

01

Discovery

Your device broadcasts over Bluetooth LE and WiFi Direct simultaneously. Nearby Gridless users appear in your network map automatically — no manual pairing, no QR scanning required to start chatting.

02

Key Exchange

P-256 ECDH establishes a shared secret. For private messages, a Double Ratchet session provides forward secrecy, auto-rotating keys every 50 messages. All session keys are stored in the iOS Keychain, backed by the Secure Enclave.

03

Encrypt & Sign

Your message is encrypted with AES-256-GCM using a per-message random nonce. A P-256 ECDSA signature is attached. Unsigned or tampered packets are silently dropped by every relay.

04

Route & Relay

Intermediate devices forward ciphertext toward the destination, decrementing TTL each hop. Route cache entries expire after 10 minutes. Loops are impossible.

05

Deliver & Decrypt

The recipient verifies the signature, decrypts with AES-GCM, and the plaintext appears. If they were offline, nearby nodes held the message and delivered it the moment they reconnected.

Live Demo

Drag the phones. Break the chain.

This is how Gridless routes for real: messages hop phone-to-phone. Drag a relay out of range and watch the mesh heal around it.

ROUTE: — Drag any phone to move it · The dotted circle is its radio range
Security

Encrypted by default.
Verified by design.

  • ✓
    End-to-end encryption
    AES-256-GCM per message with a unique random nonce. P-256 ECDH key agreement via Apple CryptoKit.
  • ✓
    Forward secrecy
    Private chats run a Signal-style Double Ratchet, auto-rotating keys every 50 messages or 15 minutes.
  • ✓
    Every packet signed
    P-256 ECDSA signatures on every packet. Tampered or unsigned packets from known peers are dropped.
  • ✓
    QR key verification
    Verify contacts in person with QR codes. A prominent warning fires if a verified peer's key ever changes.
  • ✓
    Panic wipe & biometric lock
    Face ID / PIN lock with brute-force lockout and auto-wipe. One-step destruction of all keys and messages.
$ gridless --crypto-stack
cipherAES-256-GCM
key_exchangeP-256 ECDH
signaturesP-256 ECDSA
key_derivationHKDF-SHA256
ratchetDOUBLE-RATCHET / 50 MSG
pin_hashingPBKDF2 / 210K ROUNDS
key_storageIOS-KEYCHAIN
cloud_backupDISABLED
serversNONE
Specifications

Numbers, not promises

Every figure below ships in v1.0.

$ gridless --network
transportsBLE + WIFI-DIRECT
range_per_hop30-100M / 250M
default_ttl10 HOPS
max_hops16
heartbeat10S
rate_limit100 PKT/60S
$ gridless --hardening
nonce12B RANDOM/MSG
group_keys256-BIT / GROUP
pin_lockoutEXPONENTIAL
auto_wipe10 FAILED PINS
screenshot_alertON
icloud_backupEXCLUDED
$ gridless --performance
latency_1hop<500MS
battery_active<5%/HR
memory<100MB
cold_start<2S
min_ios16.0
price$4.99 ONCE
Download

One price. Yours forever.

No subscriptions, no accounts, no ads. There are no servers, so there's nothing to pay for twice.

$4.99
One-time purchase // Lifetime updates
  • ✓ Unlimited messages, groups & broadcasts
  • ✓ End-to-end encryption with forward secrecy
  • ✓ Multi-hop mesh relay — up to 16 devices deep
  • ✓ Panic wipe, biometric lock & QR verification
  • ✓ Zero servers — keeps working even if we don't
Download on the App Store
FAQ

Common questions answered

Does it work without internet?
Yes, completely. Gridless uses Bluetooth LE and WiFi Direct for direct device-to-device communication. No internet connection, cell towers, or infrastructure required. Works in tunnels, remote areas, disasters — anywhere two devices can reach each other.
How far can messages relay?
Direct range is ~100 meters with Bluetooth LE. But Gridless isn't limited to direct communication — messages automatically relay through nearby devices, extending range indefinitely. A message can hop through 15 intermediate devices before expiring. In a festival crowd or city block, multi-hop relaying covers several kilometers.
Can governments intercept it?
No. Messages are encrypted end-to-end with AES-256-GCM using P-256 ECDH key exchange. Private messages use Double Ratchet for forward secrecy, auto-rotating keys every 50 messages. All cryptographic operations are protected by the iOS Secure Enclave. Interception is cryptographically infeasible.
What about battery drain?
Direct messaging drains minimal battery — similar to standard messaging apps. Mesh relaying is more expensive: ~8% per hour when your device is actively forwarding messages. Most users won't notice in typical scenarios. Power-save mode disables relaying to preserve battery.