єРакета is an Android app developed by studio stfalcon.com that helps in detecting rockets flying at low altitudes and are not detected by radars. The app uses two methods to solve this problem.

The first method is simple and involves people reporting the rocket sightings through the app. The app then collects GPS coordinates of the person and the fact of the sighting with a certain probability. The data is then processed, filtered, and the direction of the rocket is determined.

The second method is not mentioned in the available information. The app is free to use and falls under the category of Utilities & Tools.