Stolo Systems
Reticulum-based messenger
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Stolo is an encrypted messenger that built off of Reticulum and LXMF
Out of the box it is a private, end-to-end encrypted messenger: no account, no phone number, no sign-up. Your identity and your history live only on your device, and Stolo's gateway relays your messages across the internet.
When you need more, the same app becomes your own network. Create a network, share one invitation, and everyone who joins is in each other's contacts, trusted, automatically. Phones link directly over Wi-Fi and cellular, and optional long-range LoRa radios carry messages where there is no signal at all. Messages to someone out of range wait and are delivered when they come back.
What you can send, on or off the grid:
• Messages, photos, and voice notes, end-to-end encrypted. Only the people in the conversation can read them. Not us.
• Live GPS positions on a built-in offline world map. See yourself and your team with zero connectivity.
Under the hood, Stolo is built on Reticulum, the open cryptographic mesh stack, and sets up in a minute with no config files.
Used for backcountry trips, maritime, job sites, disaster response, and everyday group chats that should stay between the people in them.
Built on privacy. Works every day, everywhere, and keeps working when nothing else does.
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
• Stolo radios: pair a radio running Stolo firmware, such as the SenseCAP T1000-E, over Bluetooth with no code to type. Rename it, check its battery, and change its radio settings from Connections. Get the firmware at stolo.io/download.
• Clearer radio pairing: tap a radio to pick it, then press Connect. If a radio isn't accepting new phones, the app tells you how to open pairing on it.
• Guided setup for more connection types: UDP, I2P, an RNode on your Wi-Fi, and accepting incoming connections.
• Less spam: someone who isn't in your contacts now has to attach a small proof of work before their message reaches you. Trusted contacts and network members are exempt. Adjust it or switch it off in Settings → Security → Trusted contacts.
• Sending to someone who asks for proof of work no longer floods retries while your phone prepares it. If it takes more than a minute, you can keep going or stop sending.
The developer, Stolo Systems Inc., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Stolo Systems Inc.
- Size
- 277.4 MB
- Category
- Utilities
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Location
- This app may use your location even when it is not open, which can decrease device battery life.
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Messaging and Chat
User-Generated Content
- Copyright
- © 2026 Stolo Systems Inc.
