Client side App, WILL NOT WORK without Windows or Mac Teachers app

Client-side iPad app for Interaktivna Matematika, solution for emergent learning of mathematics by COPRIX media.
All of the App's content is in Serbian, as it is intended for native speakers of Serbian language.
App is made for use by children of ages 4-8, in kindergarten and in the first and second grade of elementary school.
To run the App, stable local connection with Server-side Interaktivna Matematika application via Wi-Fi network is required. Internet connection is required only to activate the license for the Server-side app. After the activation is complete, Internet connection is no longer needed.

Server-side application is available for Mac OS X & Windows. No personal data collected about students (i.e. students’ name) or data used to measure student’s performance (i.e. task solving attempts or marks) is made available to COPRIX media or any third party, and is only transmitted via local network, and stored only on the computer on which the Server-side app is installed.

App visually resembles the Server-side app, providing all the functionality needed for each lesson. It consists mainly of a mixture of drag and drop and selection tasks.

During the lesson, app analyzes each task attempt in real-time, marking different mistakes if they are made, and adapts task’s difficulty to meet student’s individual learning pace.
App collects the data it uses for analysis, and transmits it to Server-side app, where it is stored and processed, in order to give teacher insight into each student’s individual progress.

Server-side app can work in three different modes, depending on the number of tablets connected - standalone (no tablets), solo (single tablet), and full mode (multiple tablets).

When multiple tablets are connected, teacher assigns tablets to students, using the interface provided in the Server-side app. Name of the student to whom the tablet is currently assigned is shown in the client app as well.

During the lesson, task attempt made by one of the students in the Client-side app is also shown on the Server-side app in real time, so that the teacher can observe it. If multiple tablets are connected, each student can tap on the owl-shaped button to get a chance for his writing to be displayed. If only one tablet is connected, or no students have answered, teacher can call-out any student from the list.