# SIGLINK - Offline Messenger — Off-grid encrypted messenger

> Encrypted peer-to-peer messenger for offline and mesh communication. (iPhone/iPad app by WLAB LTD.)

- Source: https://appshunter.io/ios/app/siglink-offline-messenger/id6797273528 (this page in markdown: same URL + `.md`)
- Developer: [WLAB LTD](https://appshunter.io/developer/1133522877)
- Category: Social Networking, Utilities
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 17.0 · 15 MB
- Languages: American English
- Released: 2026-11-05
- Data updated: 2026-11-10
- Monetization: free with in-app purchases

## What is SIGLINK?

SIGLINK keeps your group talking when the network doesn't.

Nearby iPhones and iPads running SIGLINK connect directly over peer-to-peer Wi-Fi and Bluetooth: no cell tower, no router, no SIM, no internet. It even works in airplane mode with Wi-Fi switched on. Every device also passes messages on for the others, so a message can hop across a crowd, a campsite or a building to reach someone well out of direct range. Whenever any device has internet, messages also travel through the SIGLINK relay, and wait there for anyone whose app is closed until they're back.

END-TO-END ENCRYPTED
Every message, photo, voice note and group update is sealed on your device for each recipient. Relaying devices and our servers carry it without being able to read it. Scan a contact's code in person to verify their key; if a key ever changes, SIGLINK tells you.

WHEN THE NETWORK FAILS
- Festivals, stadiums and events where the network is jammed
- Hiking, climbing, camping and the backcountry
- Field teams, crews and volunteers coordinating on the ground
- Ships, planes, tunnels and remote sites
- Power cuts and outages
- Travelling without a data plan

FEATURES
- 1:1 and group chats
- Hold-to-talk voice messages
- Voice and video calls: directly with people nearby, or over the internet when you have it
- Invite friends with a link, or check which of your contacts use SIGLINK if you choose to
- Photo sharing, compressed to travel the mesh, with location data removed
- Add people by scanning their SIGLINK code
- Sent, delivered and read ticks
- Notifications for new messages while you're online, even with the app closed
- Radar: see your contacts on a satellite map, only if they choose to share
- One identity across all your devices, linked by QR code
- Optional encrypted backup, with a key only you hold
- Typing indicators and emoji reactions
- Block and report anyone from a chat

EXTENDED REACH
The standard mesh carries a message across up to 64 relaying devices. A one-time Extended Reach purchase raises that to 255, for very large crowds and spread-out teams.

PRIVATE BY DESIGN
Sign in once with an email address; no phone number or SIM. Your address book is never uploaded: if you choose Find My Contacts, only scrambled email addresses are checked, and none are kept. After that, SIGLINK works with no connection at all. Location sharing is off until you turn it on. Chat history stays on your devices and out of iCloud backups.

Direct range between two devices is typically 30 to 100 metres, depending on walls and surroundings; each SIGLINK device in between extends it. Short messages can also reach nearby phones over Bluetooth while SIGLINK is in the background; photos and voice notes wait for the direct link or the internet.

## Key features

- Offline peer-to-peer communication
- End-to-end encryption
- Message relaying for extended reach
- Voice and video calls
- Photo and voice message sharing
- Optional encrypted backups
- Radar for contact location sharing

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Extended Reach | $9.99 | one-time |


## Is SIGLINK safe?

Not enough ratings yet to assess SIGLINK.

## Is SIGLINK legit?

SIGLINK - Offline Messenger appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for SIGLINK is 68 out of 100 points across 7 verification signals from App Store and developer data.


## Frequently asked questions about SIGLINK

### How does SIGLINK work without internet?

SIGLINK uses direct peer-to-peer connections over Wi-Fi and Bluetooth between nearby iPhones and iPads. Messages can be relayed through multiple devices to extend the communication range, creating a mesh network.

### Is SIGLINK secure?

Yes, SIGLINK offers end-to-end encryption for all messages, photos, and voice notes. Only the sender and intended recipient can read the content, as relaying devices and servers cannot access it.

### What is the range of SIGLINK?

Direct range between two devices is typically 30 to 100 meters, depending on the environment. Each relaying device extends this range, with a standard mesh supporting up to 64 devices and an optional purchase extending it to 255.

### Can I make calls with SIGLINK?

Yes, SIGLINK supports voice and video calls. These can be made directly with people nearby or over the internet when a connection is available.

### Does SIGLINK have ads?

SIGLINK is ad-free, allowing for an uninterrupted communication experience. The app is free to download and use, with optional in-app purchases for extended features.

### What devices are supported by SIGLINK?

SIGLINK is available on iPhones and iPads. It requires iOS 13.0 or later and is compatible with both devices.

### How do I add contacts in SIGLINK?

You can invite friends with a link or check which of your contacts use SIGLINK if you choose to share that information. Contacts can also be added by scanning their unique SIGLINK code in person.

### What is the Extended Reach feature in SIGLINK?

The Extended Reach purchase allows messages to be relayed across up to 255 devices, significantly increasing the communication range for very large crowds or spread-out teams. The standard mesh supports up to 64 relaying devices.

## Version history (last 1 release)

### 1.0 — 2026-11-05

No release notes.

## More apps by WLAB LTD

- [Sensio Air: Allergy Tracker](https://appshunter.io/ios/app/sensio-air-allergy-tracker/id1252417620)

All apps by WLAB LTD: https://appshunter.io/developer/1133522877

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-10.*