The Serval Mesh




    Mobile phones normally can't be used when cellular networks fail, for example during a disaster. This means that millions of vulnerable people around the world are deprived of the ability to communicate, when they need it most.

    We have spent the past six years working with the New Zealand Red Cross to create a solution. We call it the Serval Mesh, and it is free software that allows smart-phones to communicate, even in the face of catastrophic failure of cellular networks.

    It works by using your phone's Wi-Fi & bluetooth to communicate with other phones in your vicinity. Or even by forming impromptu networks consisting only of mobile phones. Mesh communications is an appropriate technology for complementing cellular networks. Think of it like two-way radio or CB radio that has been propelled into the 21st century. For long-range communications you will still need to make use of cellular or fixed telephone networks
    or the internet.

    This software allows you to easily make private phone calls, send secure text messages and share files in caves, in subways, in the Outback, in Australia or Africa, in Europe or the United States -- even when cellular networks fail or are unavailable.

    You can also keep using your existing phone number on the mesh, which is really important in a disaster when people are trying to get back in contact with each other.

    Our software:
    * Is completely open and open-source; free for all
    * Can be carried and activated in seconds by those who need it when it is needed
    * Is carrier independent
    * Can be installed during an emergency from only one phone
    * Is distributed in nature making the network resilient
    * Can use your existing phone number
    * Encrypts mesh phone calls and mesh text messages by default
    * Can distribute pictures, videos and any other files

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    Users review

    from 1.802 reviews



    Users comments

    Jake Miles

    by Jake Miles

    Jun 08, 2017  |  "Poor"

    Too many permissions

    Mark Edrian Guillermo

    by Mark Edrian Guillermo

    Jun 07, 2017  |  "Awesome"

    Great application, one of the best used case would be hiking in mountains where cellular is out of reach.

    Aras B

    by Aras B

    Jun 05, 2017  |  "Awesome"

    IT WORKS! Yes, I know low expectations, but the fact that it works is pretty cool. This is a radio that EVERYONE has, and in case of a power outage at the cell tower, this, with an external antenna, is a working walkie-talkie. Without an antenna, I tested two Galaxy phones (an S3 and S6) to work at least to about 100 feet that I had a chance to test, with walls in between. I will test it with longer distances.

    James Chaberka

    by James Chaberka

    May 27, 2017  |  "Great"

    Great app, works quite well with wifi Bluetooth and hotspot, but ad hoc, when testing for compatibility, it says could not find root shell, but I have both root and busybox (installed to /system/bin). My device is an NVIDIA shield K1 running Android AOSP nougat.

    John Litwin

    by John Litwin

    May 16, 2017  |  "Good"

    I really like the idea but it was constantly turning my phone's wifi transmitter on and off so I uninstalled it. If someone has a solution, I'd like to hear it. Overall, though, the idea is great. The user control options maybe could use a little work.

    Sebastian Smith

    by Sebastian Smith

    May 15, 2017  |  "Poor"

    It destroyed my Wi-Fi and Bluetooth connectivity, please help me fix it