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Line Number

Privacy Policy
Last Updated: July 22, 2026
Introduction Information Collection Offline Processing Data Security Children's Privacy Contact Support

Introduction

Welcome to the Line Number mobile application ("the App"). We are committed to protecting your privacy. This Privacy Policy outlines our policies regarding the collection, use, and disclosure of personal data when you use our App and the choices you have associated with that data.

By downloading, installing, or using the App, you agree to the collection and use of information in accordance with this policy.

Information Collection and Use

Line Number does not collect, store, transmit, or share any personal identity information. The App is designed as a secure utility and text manipulation helper. We do not require any account creation or registration to use the App.

Your text entries, prefix values, configurations, and generated numbers are kept strictly private on your device. We do not transmit your inputs or output texts to any servers or external parties.

Offline Processing Guarantee

Zero Network Requests: Line Number is a completely offline utility. It does not require internet connectivity to perform its core line-numbering and formatting features. Your data never leaves your device.

All algorithm processing, swap logic, and numbering tasks run locally in memory inside the Flutter framework application layer. This ensures maximum security, zero latency, and absolute confidentiality for your documents and lists.

Device Permissions

To provide a smooth experience, the App may require minimal system permissions, such as copying data to the system Clipboard.

  • Clipboard Access: Used exclusively to copy the generated output to your clipboard for easy pasting. This process happens entirely on your local device.

Security of Your Data

We value your trust. Since we do not transmit any data over the internet or store any information on cloud servers, your inputs are safe from online data breaches. However, please remember that no method of transmission or electronic storage is 100% secure, and we advise keeping your device secure with a passcode or biometric lock.

Children's Privacy

Our App is a general productivity utility and is suitable for individuals of all ages. We do not knowingly collect personal identifiable information from children under 13. If you are a parent or guardian and you are aware that your child has provided us with personal information, please contact us so that we can take necessary actions.

Changes to This Privacy Policy

We may update our Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page and updating the "Last Updated" date at the top of this policy document.