21 Day Hard Challenge Privacy Policy

Official App Policy

Privacy Policy for 21 Day Hard Challenge

Effective Date: October 5, 2026 | Application: 21 Day Hard Challenge: Habits (com.sohaibworld.twentyonedayhard) | Publisher: SohaibWorld

1. Introduction

Welcome to 21 Day Hard Challenge: Habits (“we”, “our”, or “us”). We value your trust and are committed to protecting your personal privacy. This Privacy Policy explains how our mobile application handles user information, device permissions, and third-party advertising services.

By installing and using the 21 Day Hard Challenge mobile application, you agree to the collection and use of information in accordance with this policy.

2. Information We Collect and How We Use It

A. Local On-Device Data (Personal Data Stays With You)

21 Day Hard Challenge is designed with a privacy-first architecture. The following data is processed and stored strictly locally on your device (using encrypted Android DataStore and sandboxed app storage):

  • Daily Progress Selfies: Photos taken within the app are saved securely in your private app-specific storage directory. We never upload, transmit, or view your photos on cloud servers.
  • Habit Checklist & Streaks: Your daily task checkmarks, custom habits, water intake logs, and streak counters are kept strictly on your device.
  • Daily Reflections & Notes: All journal entries and self-reflection responses remain 100% private to you.

B. Automatically Collected Information

We do not require account creation, logins, or collection of personal identifiers (such as your name, email address, phone number, or physical address).

3. Device Permissions & Why We Need Them

To deliver core app functionality, the application may request the following permissions:

  • Camera / Storage (android.permission.CAMERA / FileProvider): Used solely to allow you to take and save daily transformation selfies for your private on-device progress gallery.
  • Notifications (android.permission.POST_NOTIFICATIONS): Used to deliver optional local daily reminder alarms (e.g., morning workout, water reminders, evening reflection).
  • Boot Completed (android.permission.RECEIVE_BOOT_COMPLETED): Used to reschedule your configured daily reminder alarms when your device restarts.
  • Internet & Network Access (android.permission.INTERNET, android.permission.ACCESS_NETWORK_STATE): Required to serve banner, interstitial, and rewarded advertisements via Google AdMob.

4. Third-Party Services (Advertising)

The app integrates Google AdMob (Google Mobile Ads SDK) to display advertisements.

Google AdMob may automatically collect and process certain non-personally identifiable device information, including:

  • Android Advertising ID (AAID)
  • IP address (coarse location)
  • Device identifiers, hardware model, and OS version
  • Ad interaction and diagnostic data

This data is collected directly by Google for ad delivery, fraud prevention, frequency capping, and performance metrics. For more details, please review:

5. Data Retention & Deletion (Your Rights)

Because your photos, habit history, and settings are stored locally on your device:

  • You have full control over your data at all times.
  • You can reset your data anytime from the Settings screen within the app.
  • Uninstalling the application immediately and permanently removes all locally stored photos, database records, and settings from your device.

6. Children’s Privacy (COPPA Compliance)

Our application is not targeted at children under the age of 13. We do not knowingly collect personal identifiable information from children under 13. If we discover that a child under 13 has provided us with personal information, we will immediately take steps to remove such information.

7. Security of Your Information

We prioritize data security. All local application files are protected by the Android sandbox security architecture. We do not transmit or store your personal files on external cloud servers.

8. Changes to This Privacy Policy

We may update our Privacy Policy from time to time. Any changes will be posted on this page with an updated “Last Updated” date. We encourage you to review this Privacy Policy periodically for any updates.

9. Contact Us

If you have any questions, suggestions, or concerns regarding this Privacy Policy or the practices of this app, please contact us at: