Open the app on as many Android smartphones or tablets as you can, and even turn off the Internet, and the cellular network. You should see the same color and digit on all devices, changing every minute. The same sequence of colors and digits has been reported to appear on any Android device that has been tested, all around the world.
It's secure to download this application. AnAurelian developed the app that falls into the Tools category. Androids talk to each other? was downloaded and set up by over 10 users and the most recent stable release was on Jan 5, 2017.
On Google Play, this application has been rated 4.4 by its users. Get the setup package of Androids talk to each other? 1.0 that is provided for free and read users' reviews on Droid Informer. The app is developed for Android 2.3 and higher.