International Code of Signals is an Android app developed by teknoraver under the Social & Communication category. The app is free and allows users to spell a phrase in the ICAO/NATO spelling alphabet. The ICAO alphabet assigns 26 code words to the English alphabet to reduce misunderstandings and increase operational safety for passengers and crew.

The app is straightforward and easy to use. Users can input their message and click on the ‘Spell It!’ button to convert it into the ICAO/NATO spelling alphabet. The app also provides a list of the code words for each letter of the alphabet.

Overall, International Code of Signals is a useful tool for those who need to communicate using the ICAO/NATO spelling alphabet. The app is simple and efficient, making it a great choice for military personnel, ham radio operators, and aviation enthusiasts.