كنوز ودفائن تطبيق عملي is an Android application developed by Shadi Sultan. It falls under the category of Education & Reference and is available for free. The app provides practical examples and exercises for researchers related to signal measurement in mathematics, as documented by ancient scholars.

The app offers the following features: examples and mathematical exercises for measuring signals, calculating them, and reaching the desired goal (with images); practical examples and exercises for measuring fingerprints, signals, and circuits; practical examples and exercises with images for various topics such as types of signals, circuits, and fingerprints; exercises on animal and bird signals, such as scorpions, spiders, turtles, gerbils, dogs, lions, chickens, pigeons, eagles, frogs, lizards, bulls, etc., with different signal positions and accompanying images; geometric signals; signals such as jars, arrows, triangles, and various shapes; Ottoman signals and their calculation method; over 50 solved goal images with accompanying signals and their locations. The information in this app is based on practical and scientific experiments, as well as ancient manuscripts.