Privacy Policy

1. Introduction

Welcome to Contest Bell ("we," "our," or "us"). We are committed to protecting your privacy and ensuring transparency about how we handle your information. This Privacy Policy explains how Contest Bell collects, uses, and protects your data when you use our mobile application.

Contest Bell is a simple utility app that helps competitive programmers track Codeforces contests and set reminders. We believe in minimal data collection and maximum user privacy.

2. Information We Collect

2.1 Information We DO NOT Collect

Contest Bell does not collect, store, or transmit any personal information. Specifically, we do not collect:

• Personal identification information (name, email, phone number)
• Location data
• Device identifiers
• Usage analytics or tracking data
• Any data that can identify you personally

2.2 Information Automatically Collected

Contest Bell may access the following with your permission:

• Internet Connection: Required to fetch contest information from Codeforces API
• Notifications: Required to send you contest reminders (stored locally on your device)
• Calendar Access (Optional): Only used when you choose to add contests to Google Calendar

3. How We Use Information

Contest Bell uses the minimal information it accesses solely for the following purposes:

• Fetching Contest Data: We retrieve publicly available contest information from the Codeforces API
• Local Reminders: Alarm/reminder preferences are stored locally on your device only
• Calendar Integration: When you add a contest to Google Calendar, this is done directly through Google's services

All data processing happens on your device. We do not have servers that store user data.

4. Data Storage and Security

4.1 Local Storage

Contest Bell stores your reminder preferences and app settings locally on your device. This data never leaves your device and is not transmitted to any servers owned or operated by us.

4.2 No Cloud Storage

We do not use cloud storage or remote databases to store any user information.

4.3 Security Measures

Since we don't collect or transmit personal data, there is minimal security risk. Your reminder settings are protected by your device's security features.

5. Third-Party Services

5.1 Codeforces API

Contest Bell retrieves contest information from the publicly available Codeforces API. We do not control Codeforces' privacy practices. Please review the Codeforces website for their privacy policy.

5.2 Google Calendar (Optional)

If you choose to add contests to Google Calendar, you will be redirected to Google's services. This interaction is governed by Google's Privacy Policy, not ours. We do not receive or store any information from this integration.

5.3 No Analytics or Advertising

Contest Bell does not use any third-party analytics services (like Google Analytics, Firebase Analytics, etc.) or advertising networks. We do not track your app usage or show advertisements.

6. Permissions Explained

Contest Bell may request the following permissions:

• Internet Access: Required to fetch contest data from Codeforces API
• Notification Access: Required to send you reminders for contests
• Alarm Permission: Required to schedule exact alarm times for contest notifications

We do not request any other permissions. All permissions are used solely for app functionality.

7. Children's Privacy

Contest Bell does not knowingly collect any information from children under 13. The app is designed for competitive programmers of all ages and does not collect personal information from any users, regardless of age.

8. Data Retention and Deletion

Since all data is stored locally on your device:

• Your reminder preferences remain on your device until you delete them or uninstall the app
• Uninstalling Contest Bell will automatically delete all locally stored data
• You can clear app data through your device's settings at any time

9. Your Rights

Since we don't collect personal data, traditional data rights (access, deletion, portability) don't apply. However:

• You have complete control over data stored on your device
• You can uninstall the app at any time to remove all local data
• You can disable permissions through your device settings

10. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by updating the "Last Updated" date at the top of this policy. Continued use of Contest Bell after changes constitutes acceptance of the updated policy.

11. International Users

Contest Bell can be used anywhere in the world. Since we don't collect or transfer personal data, international data transfer regulations (like GDPR) generally don't apply to our app.