Privacy Policy
Last Updated: September 10, 2026
Thank you for choosing the Derslerim application developed by Tredgo. This Privacy Policy document has been prepared to explain the working principles of the Application and the processes of storing your data locally.
1. Data Storage and Local Architecture
Derslerim is built entirely on an offline-first architecture. All data you create and manage within the application is kept exclusively on your device.
The data processed and saved through the application are as follows:
• User preferences (selected theme, language, etc.)
• Your academic calendar, weekly course timetable, room and lecture hall details
• Attendance records for lecture and practical sessions and schedule exceptions
• Your exam calendar, live countdown preferences, and test grades
All of this data is stored in the local storage area (SQLite database) of your device. Your data is not sent, transferred, or copied to any external server, cloud environment, or us in any way.
2. Third-Party Services and Analytics Processes
The application does not host any third-party analytics tools, tracking software (trackers), or advertising SDKs to track user behavior or create profiles. All core features such as course tracking, assistant commands, and attendance management operate entirely as a closed loop on the device without communicating with an external server.
(Note: The platform providers where the application is downloaded [Google Play Store, Apple App Store, etc.] may collect anonymous download statistics and crash reports within the framework of their own privacy policies and user agreements. These processes are independent of the local operation of the Application.)
3. Data Security, Control, and Deletion
Due to the architecture of the application, since your data is hosted solely on your own device, data security is directly related to the physical and digital security of the device you are using.
The control and disposal of all data within the application belong entirely to the user. When you uninstall the application from your device or use the "Reset Application" option in the application settings, all your saved data is permanently, irreversibly, and definitively deleted from your device.
4. Device Permissions and Local Notifications
In order for the application to perform its core functions, there is no need to define sensitive or critical permissions (camera, location, microphone, gallery, etc.) on your device.
The application may request only the following local permissions:
• Notification Permission (Optional): Used to deliver local reminders for upcoming classes, exam countdowns, and schedule change alerts. These notifications are generated solely by your device’s local operating system timer, not by any external cloud server.
• Storage / File Permission (Optional): Only requested when the user explicitly chooses to export or import a local database backup (JSON/SQLite).
5. Children's Privacy
The Derslerim application is designed with a technical infrastructure suitable for students of all ages. Since user data is not transferred to an external system and is kept entirely on the device, it is technically impossible to intentionally collect and process personal data from children or any user.
6. Changes to the Privacy Policy
This Privacy Policy text may be revised in case new features are added to the application, the technical infrastructure is updated, or there are changes in legal regulations. The updated text will take effect as soon as it is published on our official website, application store page, or within the application with its new effective date. Continuing to use the application after the changes are published means you accept the updated privacy policy.
7. Contact
You can contact us directly if you have any questions, feedback, or requests regarding this Privacy Policy, the operation of the Application, or local data storage processes. Your requests to us will be carefully examined.