What is goTenna?
goTenna is a small device that allows you to use your smartphone to send and receive messages and share your GPS location with others even when you don’t have cell service. It's also waterproof and dust proof.

How goTenna works 
goTenna is a small, rugged device designed to make “No Cell Service” no problem. You can just pair your smartphone with a goTenna and communicate without cell service in your area with those near in range with you who also have goTenna, anywhere on the planet, regardless of access to cell reception or wi-fi. goTenna allows you to send and receive texts and share GPS locations on it's offline maps, without ever relying on connectivity. Depend on it in all kinds of situations: when hiking in remote areas, traveling, attending music or sporting events or during an emergency. Plus, because goTenna is end-to-end encrypted, it’s not just for when you’re off-grid, but when you want to be.

Video: How it Works

Key App Features
  • Send & receive text messages for free
  • Share locations on detailed offline maps
  • Instantaneous transmission within range
  • Automatic message retry & delivery confirmation
  • Individual & group messaging
  • ”Shout” broadcasts to anyone within range
  • Proximal friend map & location pinging
  • Emergency chat
  • End-to-end encryption (RSA-1024) & self-destructing messages
  • Compatible with iOS & Android

  • Antenna
  • 2-watt radio
  • Flash memory good for 1000’s of messages
  • Rechargeable Lithium-ion battery
  • Micro-USB connector
  • BluetoothLE data interface
  • Status indicator lights
  • Nylon attachment strap
  • Water-resistant
  • Dust-tight

Depending on your location and elevation the signal of goTenna can reach upto 50.5 miles! How cool is that?

Which smartphones are supported by goTenna?
goTenna will work on all Apple devices running iOS7 or above, and on Android smartphones running 4.x or above.

How far can my phone and the goTenna be from each other?
Theoretically, 330 ft (100 m), but in practice, you’ll probably want to have them within 20 ft (7 m) of each other.

How does goTenna work?
Pair your smartphone to your goTenna device wirelessly, using Bluetooth Low-Energy (BTLE). Your goTenna needs to be within 20ish feet of your phone, so that the two can communicate with each other. Use our free app to type out a text message or share a location. Your smartphone will send the message to your goTenna, which will then shoot it out, via long-range radio waves (151-154 MHz), to the intended goTenna(s). At the other end, the exact same thing happens, in reverse: the recipient goTenna sends your message over BTLE to the smartphone app its paired with. All of this happens in a matter of milliseconds. 

Your goTenna will be able to transmit to any goTenna user within range. goTenna’s range can go up to 50 miles.

Can I connect my goTenna to multiple smartphones?
A goTenna can only be connected to one phone at a time.

What type of encryption does goTenna use?
Messages sent over goTenna are end-to-end encrypted with RSA-1024 public-private key ciphering. The only exception are messages sent using the “shout” and “emergency” features which are by definition public conversations with others within range of you.

The goTenna sells for now at $149.99 or estimated 6.5k if converted in PHP (stated as introductory price for early buyers). It will first be available to ship on US and Canada. We're very excited to have this available in the Philippines, hope stand alone own cell service network devices like these would be more cheaper and be developed more in the near future!


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