Privacy Policy

Effective: April 17, 2026 · Last updated: April 17, 2026

In short: AirTok does not collect any personal data, does not use any tracking technology, and all file transfers happen exclusively within your local network.

1. About This App

AirTok ("the App") is a cross-platform local network file transfer tool supporting iOS, macOS, Android, Windows, and Linux. It is developed and operated by DEXUAN LI ("we", "us", or "our").

We understand the importance of privacy. This App was designed from the ground up with a "zero data collection" principle. This privacy policy aims to transparently explain how we handle (and do not handle) your data.

2. Data We Do NOT Collect

This App does not collect, store, or transmit any of the following data to our servers or any third party:

Personal identity information (name, email, phone number, address, etc.)
Device identifiers (IDFA, IDFV, Android ID, etc.)
Precise or approximate location data
Usage behavior data or analytics
Contents or names of transferred files
Contacts, calendar, browsing history, or other sensitive personal data
Crash logs (not automatically reported)

3. How Data Is Transferred

The core function of this App is to transfer files directly between devices on the same local network:

Files are transferred via peer-to-peer TCP connections directly between devices, without passing through any cloud server or relay
TLS encryption is supported to protect data during transit within the local network
After transfer, files are saved to the receiving device's local storage

4. Device Permissions

This App may request the following device permissions, each used solely for its stated purpose:

Permission	Purpose	When Requested
Local Network	Discover other devices and transfer files on the LAN	On first launch
Photo Library	Select photos/videos to send, or save received media to Photos	When selecting photos or saving
Camera	Scan QR codes to quickly connect to other devices	When using QR scanner
File Access	Select files to send, or save received files	When selecting files

You can revoke any of these permissions at any time in your system settings. Revoking a permission may disable the related feature but will not affect other functions of the App.

5. Network Communication

This App uses the following network protocols, restricted to your local network only:

UDP broadcast/multicast (port 53318): Used to automatically discover other AirTok devices on the same network. Broadcast content only includes device name and connection port — no personal information.
TCP connections (port 53317): Used for file transfer between devices. Supports TLS 1.3 encryption.
Local HTTP (default port 53319, falls back to a system-assigned port if occupied; desktop only): Internal communication between app components, listening on 127.0.0.1 only — inaccessible to external devices.

Only Internet Access

The App's About page fetches a public configuration file via HTTPS (hosted on our official site airtokapp.com) to show the latest version and support links. This request:

Does not send any device information or user data
Does not use cookies or tracking technology
Fails silently without affecting core functionality

6. Local Data Storage

This App stores the following data locally on your device:

App settings: Download directory, device name, theme preferences, and other configuration
Device registry: List of discovered and trusted devices (device name, IP address, trust status)
Transfer history: Recent transfer records (file name, transfer status, timestamp)
Received files: Saved to your specified download directory
TLS certificates: Local key pairs used for encrypted transfers

All of the above is stored locally on your device and is never uploaded to any server. Uninstalling the App will delete all data except received files.

7. Third-Party Services

This App does not integrate any third-party SDKs, including but not limited to:

Analytics SDKs (e.g., Google Analytics, Firebase Analytics)
Advertising SDKs (e.g., AdMob, Facebook Ads)
Tracking SDKs (e.g., Adjust, AppsFlyer)
Crash reporting SDKs (e.g., Crashlytics, Sentry)
Social login SDKs

8. Data Security

We take the following measures to protect your data:

File transfers support TLS 1.3 end-to-end encryption
Devices verify each other's identity via TLS certificate fingerprints
Certificate fingerprints are pinned after first connection (Trust-On-First-Use) to prevent man-in-the-middle attacks
Optional file integrity verification (SHA-256) ensures transferred content has not been tampered with
Optional receive confirmation prevents unauthorized devices from pushing files

9. Children's Privacy

This App is not directed at children under the age of 13 and does not knowingly collect any personal information from children. If you are a parent or guardian and believe your child has encountered a privacy issue while using this App, please contact us.

10. Your Rights

Since we do not collect any personal data, there is no personal data to delete or export. All your data resides on your own device. You can at any time:

Clear transfer history in App settings
Delete received files
Untrust devices
Uninstall the App to remove all local data

11. Legal Compliance

This privacy policy is designed to comply with the following privacy regulations:

Personal Information Protection Law of the People's Republic of China (PIPL)
General Data Protection Regulation (GDPR, applicable to EU users)
California Consumer Privacy Act (CCPA, applicable to California residents)

Since this App does not collect any personal data, the obligations regarding data processing and data subject rights under these regulations do not materially apply.

12. Changes to This Policy

If this policy is updated, we will post the revised version on this page and update the "Last updated" date at the top. Significant changes will be communicated via in-app announcements.

We encourage you to review this page periodically for the latest privacy information.

13. Contact Us

If you have any questions or suggestions regarding this privacy policy, please contact us at:

📧 Email: dexli0215@gmail.com