Privacy Policy — To-Do List & Planner: Task Reminder App
App Name: TaskZen: To-Do List & Planner (shown on your phone as "To-Do List")
Developer / Company: Hamdaan Studio
Package Name: com.hamdaanstudio.todo
Effective Date: May 1, 2026
Last Updated: October 1, 2026
Contact Email: maliha.danish615@gmail.com
Website / Privacy Policy URL: https://sites.google.com/view/taskzen-to-do/home
1. Summary
TaskZen does not collect your personal data. Everything you create stays on your device.
The app has no account, no sign-up, no ads, no analytics and no tracking.
The app does not send your tasks, notes, habits or location to us or to anyone else. It does not even have permission to access the internet.
Location is used only if you turn on a location reminder for a task, and only on your device to remind you when you arrive at or leave that place.
2. Information you create in the app
You may enter the following information. It is stored only on your device, in the app's private storage, which other apps cannot access:
Tasks: titles, descriptions, due dates and times, reminders, priorities, categories, colors, repeat settings, templates and the places you attach to tasks
Notes: text, checklists, colors and images you add
Habits and their daily check-ins
Statistics calculated from your tasks (streaks, completion rates, focus time)
Settings: theme, language, notification times and other preferences
App lock PIN: stored only as a one-way hash (SHA-256), never as the PIN itself
We (Hamdaan Studio) cannot see or access any of this information.
3. Location
TaskZen uses location only for the optional location reminders feature.
When: only if you add a place to a task and turn on a location reminder ("Remind me when I arrive" or "Remind me when I leave"), or tap "Use current location".
Disclosure first: before Android asks you for location permission, the app shows a message explaining how location is used. You can choose "No thanks".
Background location: to remind you when you arrive at or leave a place, the app needs location access "All the time", including when the app is closed or not in use. This uses Android's geofencing (Google Play services location) on your device.
What is stored: only the place you choose for a task (name and coordinates), saved on your device with that task. Your location history is not recorded.
Not shared: the app does not send your location to us or to any third party.
Address search: when you search for an address or use your current location, the app uses Android's built-in geocoding service to convert between an address and coordinates. This service is provided by your device (usually Google) and may contact its servers under that provider's privacy policy. TaskZen itself does not send or store this data anywhere else.
Turning it off: remove the place from the task, or go to Settings → Apps → To-Do List → Permissions → Location on your phone at any time. All other features keep working without location.
4. Permissions the app uses
The app does not request access to your contacts, camera, microphone, phone calls, SMS or files. Images and backup files are opened only through Android's file picker when you choose them.
5. Voice input
If you use voice input to add a task, Android's speech recognition service on your device (for example, Google) turns your speech into text, under that service's own privacy policy. TaskZen only receives the resulting text and does not record or store audio.
6. Fingerprint and face unlock
If you turn on biometric lock, Android's `BiometricPrompt` checks your fingerprint or face. The app **never** receives, stores or sends your biometric data. It only receives "success" or "failure" from Android.
7. Backups and exports
Backup files and CSV exports are saved only where you choose (for example, your Downloads folder or a folder you pick for weekly auto-backup). They stay under your control.
Android backup: if backup is turned on in your phone's settings, Android may back up the app's data to your own Google account so it can be restored on a new phone. This is a feature of Android, managed by Google under your account; we cannot access it. You can turn it off in your phone's backup settings.
8. Sharing with third parties
We do not sell, share or transfer your data to anyone. TaskZen contains:
No advertising
No analytics or tracking
No crash-reporting services
No social media integrations
No servers or cloud database of our own
The app uses standard Android and Google libraries (for example Jetpack, Room, WorkManager, Google Play services location and the Google Play in-app review dialog). These run on your device as described in this policy.
9. Data retention and deletion
Your data stays on your device until you delete it:
Delete individual tasks, notes or habits in the app. Deleted items go to the Trash and are permanently removed after the number of days shown there, or when you empty the Trash.
Use Settings → Clear completed or Clear all tasks.
Uninstall the app to remove all of its data from your device.
Because we never receive your data, there is nothing stored with us to delete.
10. Children
TaskZen is a general-audience productivity app and is not directed at children under 13. It does not knowingly collect personal information from anyone, including children.
11. Your rights
Because all data stays on your device, you can view, edit, export and delete it yourself at any time from inside the app. If you have a question about your data or this policy, contact us at the email below.
12. Changes to this policy
If the app changes in a way that affects your privacy (for example, adding cloud sync), we will update this policy and the "Last updated" date before releasing that version.
13. Contact
Hamdaan Studio
Email: maliha.danish615@gmail.com