Privacy Policy

1. Who we are

This Privacy Policy describes how Croxton Technologies, the publisher of the Telix mobile application ("Telix", "we", "us", or "our"), handles information when you use the app.

App name: Telix — Call Tracker & Manager
Package ID: com.telix.app
Publisher: Croxton Technologies
Developer contact: Abdul Aleem
Country of operation: India
Contact email: aleem@croxton.in

2. Scope of this policy

This policy applies to the Telix Android application distributed through Google Play and any associated official channels. It does not apply to other apps you may install on your device, including the Android operating system itself, third-party dialers, contact apps, or any service you reach by tapping links inside Telix.

3. Summary of data practices

Telix is built on a principle we call on-device by default. The following statements all describe the current version of Telix:

• Telix does not run its own backend server, and does not sync your call log, contacts, tags, or notes to any cloud or remote database.
• Telix does not require an account. You do not register, sign in, or provide an email to use the app.
• Telix does not transmit your call log, contact names, phone numbers, tags, or notes anywhere.
• Telix does not contain analytics SDKs that read your in-app behavior.
• Telix includes Google Firebase for app infrastructure, which may send limited technical identifiers to Google; it never receives your call log, contacts, tags, or notes (see section 9).
• Telix does not contain advertising SDKs in this version (see section 10 for future plans and disclosure).
• Telix works fully offline for its core call-management features.

4. What information we collect

From you, directly: nothing. Telix does not collect personally identifiable information such as your name, email address, date of birth, government ID, or payment information. It does not require you to create an account.

Information that stays on your device

To do its job, Telix reads and works with the following information — all of which remains on your phone at all times:

• Your device call log — the same call history shown in your phone's stock dialer (date, time, duration, number, type: incoming/outgoing/missed/rejected, and which SIM the call used).
• Caller names from your contacts — only to label the calls in the Telix UI. The contact list itself is not copied or exported.
• Tags and notes you add — stored in a private app database on your device (using the Hive local-storage library).
• Preferences — your theme choice, SIM-tracking selection, and other settings.

This information is processed only in your device's memory and on-device storage. It is never transmitted off the device by Telix.

5. Permissions Telix requests and why

Android requires apps to declare and request permissions before accessing certain device features. Below is every permission Telix requests, with a plain-language reason. Permissions can be revoked at any time in your phone's Settings → Apps → Telix → Permissions.

Telix does not request location, microphone, camera, SMS, calendar, body sensors, accessibility, device administrator, or any background-services permission.

6. How information is used

The on-device information described above is used solely to provide the features of Telix to you:

• To organize and display your call history.
• To compute analytics (counts, durations, top callers, etc.) shown only to you in the app.
• To let you filter, search, tag, annotate and export your calls.
• To remember your preferences between launches.

Telix does not use your information for advertising, profiling, marketing, automated decision-making, or any purpose unrelated to the app's core features.

7. Information sharing & disclosure

We do not sell, rent, lease, or share your personal information with anyone.

Because Telix has no servers and never transmits your data off-device, there is nothing for us to share. This applies to:

• Other companies, partners, affiliates, advertisers, or data brokers.
• Government bodies, law-enforcement agencies, or courts — we have no data to produce in response to any subpoena, warrant, or other legal request.
• Anyone you have not personally chosen to share with (for example, by using your phone's native share function to export a CSV).

You may, at your own initiative, use the in-app Export Report feature to generate a CSV of your call history and share it via Android's standard share sheet (email, Drive, WhatsApp, etc.). That export is initiated by you, and Telix has no involvement once the file leaves the app via your chosen sharing target.

8. Where your data is stored

All Telix data lives in Android's private app storage on your device, inside the Telix app sandbox. This area is:

• Isolated from other apps by the Android operating system.
• Removed automatically by Android when you uninstall Telix.
• Not backed up by Telix to any cloud service.

If your phone is configured for system-level backup by you or by your phone manufacturer (for example, Google's "Backup by Google One" service), Telix's data may be included in those system backups, depending on your phone's settings. This is a function of your Android device and your Google account, not of Telix. You can disable per-app backups in Settings → Google → Backup.

9. Third-party services

Telix uses the following third-party libraries to provide its functionality. Other than Google Firebase (described below), none of these libraries, as used by Telix, transmits your call data, contacts, tags, or notes to any remote server:

• Flutter & Dart — the application framework, by Google.
• Hive — on-device storage for tags, notes and preferences.
• call_log — reads the device's call log via Android's public API.
• flutter_contacts — reads device contacts via Android's public API.
• permission_handler — manages Android permission prompts.
• url_launcher, share_plus, path_provider — for sharing exported CSVs and opening external links via the system.
• in_app_review — by Google, used only when you choose to rate Telix on Google Play. Activating this opens Google's rating sheet; your interaction with that sheet is governed by Google Play's own privacy policy.
• Google Firebase (firebase_core, Cloud Firestore) — used for app infrastructure. The Firebase SDK may transmit limited technical data to Google — such as a Firebase installation identifier and basic device/diagnostic information — in order to operate. Firebase does not receive your call log, contacts, phone numbers, tags, or notes. Data handled by Firebase is processed under Google's Firebase privacy and security terms.

If you tap a phone number in another app and Android opens Telix's dialer, or if you share an exported CSV through Android's share sheet, those external interactions are governed by the privacy policies of the third-party apps involved.

10. Advertising

The current version of Telix does not contain advertising. No ads are shown inside the app, and no ad networks are integrated.

If a future version of Telix introduces advertising, we will:

• Update this Privacy Policy with the names of the advertising partners used and the categories of data they may receive.
• Update the in-app Privacy screen with the same information.
• Confirm that any advertising will operate strictly within Google Play's policies, including the Personal & Sensitive Information policy.
• Continue to never share your call log, contact names, phone numbers, tags, or notes with any advertising partner.

You will see these changes reflected here and in the app before any ads appear.

11. Analytics & crash reporting

Telix does not embed third-party product-analytics SDKs that profile your in-app behavior (such as Mixpanel, Amplitude, or Segment), and does not embed a third-party crash-reporting SDK such as Sentry or Firebase Crashlytics. Telix does include Google Firebase (firebase_core and Cloud Firestore) for app infrastructure; the Firebase SDK may send limited technical and diagnostic data (for example, a Firebase installation identifier) to Google in order to operate. Firebase does not receive your call log, contacts, tags, or notes. See section 9 for details.

If your phone is opted in to Google's "Usage & diagnostics" setting at the operating-system level, Android may automatically report aggregated, anonymized crash statistics for any installed app — including Telix — to Google. This is a function of your Android device and your Google account, not of Telix. You can control this in Settings → Google → Usage & diagnostics.

12. Data retention & deletion

Because Telix stores all data on your device, retention is fully under your control:

• Tags & notes — kept until you remove them inside Telix, or until you clear app data or uninstall the app.
• Preferences — kept until you change them, clear app data, or uninstall.
• Call history — managed by Android itself in the system call log. Telix only reads it; it does not control retention of the call log.

To erase all Telix-stored data immediately, go to Settings → Apps → Telix → Storage → Clear data, or uninstall the app. Both actions wipe every tag, note and preference Telix has stored. Because nothing was ever sent off-device, there is no further deletion request to make.

13. Security

Telix relies on the Android operating system's app-sandbox model to keep its on-device data isolated from other apps. Tags, notes and preferences are stored using Hive in the Telix sandbox. Because no data leaves the device, there is no network transit to secure, no server to harden, and no breach surface beyond the device itself.

We strongly recommend keeping your phone protected with a screen lock and keeping Android and Telix up to date. No method of digital storage is 100% secure, but on-device-only storage materially reduces the risk surface compared to apps that synchronize data to remote servers.

14. Children's privacy

Telix is not directed to children under the age of 13 (or under 16 in jurisdictions where that is the relevant age of consent). Telix does not knowingly collect information from children. If you believe a child has provided information to Telix, please contact us at aleem@croxton.in; because Telix stores all data on-device, the parent or guardian can immediately remove all such data by uninstalling the app from the child's device.

15. International users

Telix is distributed through Google Play worldwide. Because Telix does not transmit data off the user's device, no international data transfers occur. If you are using Telix from a country with specific data-protection laws, the sections below describe additional rights you may have.

16. Your rights under the GDPR (EU / UK)

If you are located in the European Economic Area, the United Kingdom, or Switzerland, the General Data Protection Regulation (GDPR) gives you the following rights. Because Telix does not collect or hold any personal data on its servers (it has no servers), most of these rights are satisfied by your own ability to manage data on your device:

• Right of access: All information Telix uses is the on-device data described in this policy — you already have full access through the app.
• Right to rectification: You can correct any tag, note or preference inside Telix at any time.
• Right to erasure: Clear app data or uninstall Telix to delete all of its on-device storage.
• Right to restrict processing: Revoke any of Telix's permissions in Android Settings.
• Right to data portability: Use the in-app Export Report feature to download your data as a CSV.
• Right to object: You can stop using Telix at any time by uninstalling it.
• Right to lodge a complaint: You may contact your local data-protection authority.

The legal basis Telix relies on for processing on-device information is your consent (Article 6(1)(a) GDPR), granted by installing the app and granting the relevant Android permissions.

17. Your rights under the CCPA (California)

If you are a California resident, the California Consumer Privacy Act (CCPA) gives you the right to know what personal information is collected about you, the right to delete personal information, and the right to opt out of the sale or sharing of personal information.

Telix does not sell or share personal information for advertising or any other purpose, has no servers that hold personal information about you, and provides full deletion of on-device data when you uninstall the app or clear its app data.

18. Changes to this policy

We may update this Privacy Policy from time to time to reflect changes in the app or in applicable law. When we do, we will revise the "Effective date" at the top of this page. If the change is material — for example, the addition of advertising or analytics — we will also surface a notice inside the app the next time you open it. Continued use of Telix after a policy change indicates acceptance of the updated policy.

19. How to contact us

If you have questions, concerns, or requests regarding this Privacy Policy or Telix's privacy practices, please contact:

Croxton Technologies
Attn: Abdul Aleem
Email: aleem@croxton.in

We respond to genuine privacy questions personally and in plain language.