iPhone Screenshots


This app pairs with Mission Darkness Faraday Bags. It is designed to test the signal blocking strength of faraday bags or other faraday enclosures. It allows the user to perform a test using wifi and cell signals to determine whether the faraday enclosure completely or only partially blocks signal transmission. A report is generated with dB attenuation ratings.

What’s New

Version 1.0.5

iOS 13 Compatibility.

Ratings and Reviews

2.8 out of 5
47 Ratings

47 Ratings

Adam Sarwar ,


After installing, I ran a test with WiFi and Cellular both on, and it didn’t seem to test or even notice my cellular connection, which it said passed, as if there was no signal, when there was.

I switched over to cellular only in the middle of the test, and it doesn’t notice my cellular at all..

I try rerunning a test with cellular only, and mind you this is all prior to even trying to run the test in a faraday bag.

When I rerun the test, it asks for your email to continue.

Shady and scammy in my opinion, especially for an iOS app that doesn’t even work as it should.


tuyetroi7 ,

Good app!

This app is great! it is true that my application is to be searched, interface design is very professional, very detailed display section, clear the item, look at the source using a very easy to understand. More important is the application works very efficient, very accurate staff.

The Old Gator ,

These are the GOOD GUYS...

Bought a lot of their products over the years. Their App for testing for EMP containers vessels is second to none. Their quickly fix their app to work with the new updated software was done in a timely manner. Thanks and stay safe!!!

App Privacy

The developer, Merakai, LLC, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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