Dusolmate — Study material, PYQs & syllabus for DU students
Dusolmate ("the App", "we", "us") is a mobile application that helps Delhi University students access previous year question papers (PYQs), syllabi, and study material for their selected course and semester. This policy explains what information the App collects, how it's used, and the choices you have.
This policy applies only to the Dusolmate mobile app. It does not apply to any third-party sites or services you may reach through links inside the App.
Dusolmate is an independent, student-run project and is not affiliated with, endorsed by, or officially connected to the University of Delhi, its School of Open Learning, or any of their departments. All course names, subject names, and related terms are used only for descriptive and educational purposes.
When you first open the App, you choose your course, semester, and subjects from a list. This selection is stored only in your device's local storage (Android SharedPreferences) so the App can personalize which papers and material it shows you. It is not tied to your name, email, or any account — Dusolmate does not currently require account creation or login.
To show you papers, syllabi, and study material, the App queries our database (Google Firebase Firestore) for content matching your selected course/semester/subject. These requests do not include your name or any personal identifier — only the course, semester, and subject values needed to fetch the right content.
The App is supported by ads served through Google AdMob (banner, interstitial, and rewarded interstitial ad formats). To serve and measure ads, Google's Mobile Ads SDK may collect information such as your device's advertising identifier (AAID), IP address, general device information, and app usage data, and may use this information to show personalized ads. This collection and use is governed by Google's Privacy Policy and, where applicable, Google's advertising-specific terms.
You can opt out of personalized advertising, or reset your advertising identifier, at any time in your device settings (Settings → Privacy → Ads on most Android devices).
When you use the App's "Share" feature on a document, the generated link contains only an internal content reference ID — never your name, device ID, or personal information.
The App uses Firebase Analytics to understand how the App is used and to improve it over time. Firebase Analytics may automatically collect information such as app opens, screens viewed, in-app events (e.g. which resource type or subject you browse), session duration, general device information (device model, OS version, language, screen resolution), and an approximate location derived from your IP address (typically at city-level, not precise GPS location). This data is associated with an app-instance identifier, not with your name or any account, since the App does not require sign-in.
This collection and use is governed by Firebase's privacy documentation and Google's Privacy Policy. You can limit ad personalization and related data use via your device's advertising settings as described in Section 2(c).
We do not sell your personal information to third parties.
The App relies on the following third-party services, each governed by its own privacy policy:
| Service | Purpose | Policy |
|---|---|---|
| Google Firebase (Firestore) | Storing and serving course content, syllabi, PYQs, and announcements | View |
| Google Firebase Analytics | Understanding app usage patterns to improve the App | View |
| Google AdMob | Displaying banner, interstitial, and rewarded ads | View |
| Cloudflare R2 | Hosting PDF files that the App downloads for offline viewing | View |
Your course/semester/subject selections are stored locally on your device and are removed automatically if you uninstall the App. PDF files you open are cached locally on your device to avoid repeated downloads; you can clear this cache at any time by clearing the App's storage in your device's App Info settings, or by uninstalling the App.
Content served from Firebase Firestore is transmitted over encrypted connections (HTTPS/TLS).
Dusolmate is intended for university-level students and is not directed at children under the age of 13. We do not knowingly collect personal information from children under 13. If you believe a child has provided us with personal information, please contact us at the email below so we can address it.
We may update this Privacy Policy from time to time. Changes will be posted on this page with an updated "Last updated" date below. Continued use of the App after changes are posted constitutes acceptance of the revised policy.
If you have questions about this Privacy Policy or how your information is handled, contact us at:
Last updated: 21 August 2026