OnStem Privacy Policy

Last updated: December 16, 2025

OnStem respects your privacy. This Privacy Policy explains how information is handled when you use the OnStem application.

1. Data We Use

File Access (User-Selected)

OnStem allows you to select files from the system Files app for processing.

All selected files are processed entirely on your device
Processing is performed using on-device (local) models
No files are uploaded to any server
No files are uploaded to Apple, the developer, or any third party
The developer cannot access, view, or know the content of your files

File access is fully controlled by the iOS permission system. You can revoke access at any time in system settings.

Other User Data

OnStem does not collect, store, or upload any personal data, including but not limited to:

Name
Email address
Contact information
Location data
Device content
Usage or behavioral data

2. Network Usage

OnStem is a local-first, offline-focused application. Network connections are used only for the following purposes:

Subscription / membership verification
Displaying advertisements (if applicable)

All core features of OnStem work offline. No user-generated content is transmitted over the network.

3. Data Storage and Security

All processing is performed locally on your device
No user files are stored on servers
No user profiling or tracking is performed
No cross-app tracking is used

4. Third-Party Services

If third-party services are used (such as ads or in-app purchase validation), those services may process limited data according to their own privacy policies.

OnStem does not share your files or personal content with any third party.

5. Changes to This Policy

This Privacy Policy may be updated from time to time. Any changes will be reflected within the app or its store listing.

6. Contact

If you have any questions about this Privacy Policy, please contact:

Email: yangliu-1995@outlook.com