Finally iTag One released to public and is available on Google Play.

The application intended to be number one among the others attempts to give a comfortable and robust way to use iTag devices.

The iTags are simple and chip but extremely useful anti-lost key finder device for those who used to lose their keys and wallets an can be bought for $1.5-$2 in many stores all over the world:


While it is in beta yet but it has all the initially planned features and pretty matured on some devices.

Although Bluetooth Low Energy technology is not perfectly working in all circumstances but we implemented lot of workarounds to make the use of the iTag devices seamless as the code is branched from the main close source IoT project based on the same BLE android stack. This why iTag One is not another clone of well known of “iTracing” project but designed and developed from scratch having no copy-pastes from docs but optimised to pair with this one button gadget.

In order to adopt the application to the wast range of Android device iTag One utilises Google Crashlytics reporting and provides us full info about application crashes and missbehaviour.

With the S4Y passion about development speed we managed the total duration from the moment of the idea to the first public beta to be 14 days and we really proud of our performance.

On this project we used Microsoft Appcenter as CI/CD tool and pretty impressed with its capability. Alas the depending on bluetooth gave us not much chances to use their testing capabilities but the build and deployment functionality are really amazing.

And last but not least iTag One is open source.


Krzysztof · February 19, 2019 at 8:00 am


I have been using a iTag One for several days. This is the best iTag application I’ve met. Congratulations. Just ask for information about the purpose of the bell button (the first one from the left).

Kind regards

    Sergey · February 22, 2019 at 10:00 am

    That button turns on “silent mode”. Sometimes you do not want a laoud noise to be produced while having to separate a phone and keys. You will get only visual notification about the tag has disconnected.

Ali Enteshari · March 31, 2019 at 10:06 am

Nice company and nice works.
Why don’t you have contact information?
Don’t you like people to contact you?

    Sergey · April 17, 2019 at 2:30 am

    Actually we do have contact information but due to not the very best site design it was not easy to see

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