Privacy Policy
Effective Date: 18 January 2026
Introduction
HyperNote ("we," "our," or "the app") is a lock screen quick notes application designed with your privacy as the top priority. This Privacy Policy explains how we handle your data and why we can confidently state that your information remains completely private and secure.
Our Core Privacy Principle
All your data stays on your device. Period.
HyperNote does not collect, transmit, store, or share any of your personal data with us or any third parties. We have no servers, no cloud storage, no analytics, and no way to access your notes or any other information you create within the app.
Data Storage
What Data is Stored
- Notes: Your notes, including titles, content, and timestamps, are stored locally on your device
- Reminders: Reminder times associated with your notes are stored locally
- Settings: Your app preferences (theme, wallpaper choice, enabled features) are stored locally
- Custom Wallpaper: If you set a custom lock screen wallpaper, the image is stored locally on your device
Where Data is Stored
All data is stored exclusively in your device's private app storage using:
- A local SQLite database for notes and reminders
- Android SharedPreferences for settings
- Local file storage for custom wallpapers
This data is protected by Android's app sandboxing security model, meaning other apps cannot access your HyperNote data.
No Cloud, No Sync, No Transmission
HyperNote does not include internet permission in its manifest. This means the app is physically incapable of sending any data off your device. Your notes cannot be:
- Uploaded to any server
- Synced to any cloud service
- Transmitted to us or any third party
- Accessed remotely by anyone
No Account Required
HyperNote does not require you to create an account, sign in, or provide any personal information such as:
- Email address
- Phone number
- Name
- Location
- Any other identifying information
No Analytics or Tracking
HyperNote contains:
- No analytics SDKs
- No crash reporting services
- No advertising frameworks
- No user tracking mechanisms
- No usage statistics collection
We have no way of knowing how you use the app, what notes you create, or even that you have installed the app.
Permissions Explained
HyperNote requires certain Android permissions to function. We believe in complete transparency about why each permission is needed and how it is used:
Display Over Other Apps (SYSTEM_ALERT_WINDOW)
| Why we need it | This is the core permission that allows HyperNote to display the note-taking interface on your lock screen. |
| How we use it | Solely to show the HyperNote overlay when your screen is locked, allowing you to take notes without unlocking your device. |
| What we don't do | We never use this permission to display ads, track your activity, or overlay content in any other context. |
Foreground Service
| Why we need it | Required to keep the lock screen service running reliably in the background. |
| How we use it | To ensure HyperNote is ready to display instantly when you lock your screen. |
| What we don't do | The service only monitors screen lock/unlock events and does not perform any data collection or transmission. |
Run at Startup (RECEIVE_BOOT_COMPLETED)
| Why we need it | Allows HyperNote to automatically start when you restart your device. |
| How we use it | To restore the lock screen service after a device reboot, so you don't have to manually open the app each time. |
| What we don't do | No data is collected or transmitted during boot. |
Post Notifications
| Why we need it | Required on Android 13+ to show reminder notifications. |
| How we use it | Solely to alert you when a note reminder is due. |
| What we don't do | We never send promotional notifications, and all notification content comes from your own notes. |
Schedule Exact Alarms
| Why we need it | Allows reminders to fire at the exact time you set. |
| How we use it | To ensure your note reminders trigger precisely when scheduled. |
| What we don't do | Alarms are only used for reminders you explicitly create. |
Vibration
| Why we need it | Provides haptic feedback when using the on-screen keyboard. |
| How we use it | Brief vibrations when you tap keys on the lock screen keyboard. |
| What we don't do | Vibration is never used for tracking or any purpose other than keyboard feedback. |
Wake Lock
| Why we need it | Briefly keeps the screen on when displaying the lock screen overlay. |
| How we use it | To ensure the overlay displays properly when transitioning from screen off to lock screen. |
| What we don't do | Wake locks are released immediately when no longer needed. |
Battery Optimization Exemption
| Why we need it | Prevents Android from stopping the lock screen service to save battery. |
| How we use it | To ensure HyperNote remains available on your lock screen reliably. |
| What we don't do | This permission does not allow any data access or transmission. |
Notification Access (Optional)
| Why we need it | Allows HyperNote to display your other apps' notifications on the lock screen overlay. |
| How we use it | If you grant this optional permission, notifications from your other apps are displayed within the HyperNote lock screen interface for convenience. |
| What we don't do | Notification content is only displayed locally and is never stored, logged, or transmitted. |
Device Administrator (Optional)
| Why we need it | Enables the double-tap to sleep feature on the lock screen. |
| How we use it | If you enable this optional feature, double-tapping the wallpaper area will turn off your screen. |
| What we don't do | We use only the screen lock capability. We cannot erase your device, change your password, or perform any other device administration functions. |
Data Retention and Deletion
Your Control
You have complete control over your data:
- Delete individual notes at any time from within the app
- Clear all notes using the "Clear All" function
- Remove a reminder by editing or deleting the associated note
Uninstallation
When you uninstall HyperNote, all app data is automatically and permanently deleted by Android, including:
- All notes
- All settings
- Custom wallpaper
- All other app data
No data persists after uninstallation.
Children's Privacy
HyperNote does not knowingly collect any personal information from anyone, including children under 13. Since the app collects no personal data whatsoever, it is safe for users of all ages.
Third-Party Services
HyperNote uses no third-party services, SDKs, or libraries that collect user data. The app is entirely self-contained.
Changes to This Privacy Policy
We may update this Privacy Policy from time to time. Any changes will be reflected in the "Effective Date" at the top of this document. Since we have no way to contact users (we don't collect contact information), significant changes to this policy will be communicated through app update release notes.
Data Security
Your data is protected by:
- Android App Sandboxing: Other apps cannot access HyperNote's data
- No Network Access: Data cannot leave your device
- Device Encryption: If your device uses encryption, your notes are encrypted at rest
- No Remote Access: We have no servers or backdoors to access your data
Your Rights
Because all data is stored locally on your device and we have no access to it:
- Access: You can view all your data directly in the app
- Correction: You can edit any note at any time
- Deletion: You can delete any or all notes at any time
- Portability: Your data is stored on your device under your control
Contact Us
If you have any questions about this Privacy Policy, please contact us at:
Email: hyperfixlabs@gmail.com
Summary: HyperNote is designed from the ground up to be a completely private, offline note-taking app. We cannot see your notes, we cannot access your data, and we have no interest in doing so. Your notes are yours alone.
- All data stored locally on your device only
- No internet connection capability
- No accounts or personal information required
- No analytics, tracking, or advertising
- No third-party data sharing
- Full user control over all data