Privacy Policy - Nidaa
1) Who we are
Nidaa is provided by Saifullah Ahad ("we", "us", "our"). Our website/portfolio is: https://saifullah.ai.
2) What this policy covers
Nidaa is an Android call screening assistant designed to help you screen incoming phone calls, apply your own caller rules, search contacts, and attach private notes and tags to numbers. This policy explains what information the app handles on your device.
3) Information the app handles
Nidaa keeps the following only on the phone, in its own local app storage:
- Your number rules: Exact phone numbers you choose to block or trust.
- Caller notes and tags: Private notes and tags you attach to specific phone numbers.
- Last screened call: A single card recording the most recent incoming call screened by Android's CallScreeningService (phone number, screening label, message, and timestamp). Each new screened call replaces this card. Nidaa maintains no ongoing call history or call log.
- Offline pattern pack choices: Your selected offline protection pack preferences.
- Display and accessibility settings: High contrast, simple layout, and spoken warning preferences.
We do not receive any of this information.
4) Internet and network access
Nidaa has no internet or network permission. It never sends your contacts, numbers, notes, tags, number rules, or screening events to us or to any server. All screening logic and pattern assessments run offline on your device.
5) Permissions
- Contacts (
READ_CONTACTS, optional): used only to search contacts by name or number and identify known callers during incoming call screening. If denied, non-contact screening still works. - Notifications (
POST_NOTIFICATIONS, optional): displays incoming call screening alerts and warning notifications on Android 13+.
Nidaa does not request call log permission (READ_CALL_LOG), phone state
(READ_PHONE_STATE), or call placement (CALL_PHONE).
6) Dialer handoff
Nidaa does not place phone calls directly. Tapping "Open dialer" hands off the phone number to your device's
system dialer using Android's standard ACTION_DIAL intent, letting you confirm and place the call yourself.
7) Spoken warnings
If you enable spoken warnings, Nidaa sends warning text (which can include a caller's name or number) to your phone's selected text-to-speech engine. That engine may process speech locally or via an online service according to its own provider settings and privacy policy.
8) Storage, backup and deletion
Nidaa stores its rules, notes, tags, and settings in private app storage. You can clear blocked numbers, trusted numbers, or the last screened call card directly inside the app, and you can edit or remove any note or tag. Device backup or cloud transfer may copy app settings and local data according to your Android system settings. Clearing Nidaa's storage in Android Settings, or uninstalling it, removes all of its private local data.
9) Advertising, analytics and accounts
Nidaa contains no advertising, analytics or tracking SDKs, and it has no accounts or sign-in.
10) Children
Nidaa is an on-device utility and does not knowingly collect information from children.
11) International transfers
Nidaa does not transfer data internationally because it has no internet permission and transmits no data to external servers.
12) Changes to this policy
We may update this Privacy Policy from time to time. We will post the updated policy at https://privacy.saifullah.ai/nidaa.html and update the effective date above.
13) Contact
If you have questions or requests, contact: Saifullah Ahad
Email: [email protected]
Phone: +8801711134346
Website: https://saifullah.ai
Location: Dhaka, Bangladesh