Privacy Policies

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t-SNE Explorer Manim Studio (Windows) ManimStudio (iOS) Generalized Covariance Matrix EigenDenoise GPS-location-app Whisper

t-SNE Explorer Privacy Policy

Last Updated: January 14, 2026

Developer: Yu, Yao-hsing
Application: t-SNE Explorer
Store ID: 9P969D6N7P6J

1. OVERVIEW

t-SNE Explorer is a transparent t-SNE (t-Distributed Stochastic Neighbor Embedding) visualization tool designed to help users analyze and visualize high-dimensional data in 2D space. This privacy policy explains our data handling practices.

2. DATA COLLECTION

t-SNE Explorer DOES NOT collect, transmit, or share any personal information or user data.

3. LOCAL DATA STORAGE

The application stores the following data LOCALLY on your device only:

  • User-uploaded CSV files and images
  • Generated datasets (synthetic points, MNIST data)
  • t-SNE computation results
  • Application settings and preferences

All data is stored in the following local directory:
C:\Users\<YourUsername>\.t-sne\

This data is NOT transmitted to any external servers or third parties.

4. MNIST DATASET

When you choose to load the MNIST handwritten digits dataset:

  • The dataset is downloaded from OpenML (sklearn's fetch_openml)
  • Data is downloaded directly to your local machine
  • No usage analytics or download tracking is performed
  • The dataset is cached locally for future use

5. INTERNET CONNECTIVITY

The application requires internet connection ONLY for:

  • Downloading the MNIST dataset (one-time, on user request)
  • No analytics, telemetry, or tracking data is transmitted
  • No advertisements or external content is loaded

6. NO THIRD-PARTY SERVICES

t-SNE Explorer does NOT use:

  • Analytics services (Google Analytics, etc.)
  • Advertising networks
  • Cloud storage services
  • User tracking or profiling tools
  • Crash reporting services that transmit data externally

7. DATA SECURITY

  • All data processing occurs locally on your device
  • No data is uploaded to remote servers
  • You have full control over your data
  • You can delete all stored data by removing the .t-sne folder

8. PERMISSIONS

The application requires the following permissions:

  • File System Access: To read uploaded CSV/image files and save results
  • Internet Access: To download MNIST dataset (optional, user-initiated only)
  • Desktop Access: To display the application window

9. CHILDREN'S PRIVACY

t-SNE Explorer does not knowingly collect any information from children or anyone else. The application is safe for users of all ages.

10. OPEN SOURCE

The application's source code is transparent and can be reviewed to verify our privacy claims.

11. YOUR RIGHTS

You have the right to:

  • Access all your locally stored data (in .t-sne folder)
  • Delete all your data at any time
  • Use the application completely offline (except MNIST download)
  • Export your results in various formats

12. DATA RETENTION

  • Data is retained locally until you manually delete it
  • Uninstalling the application does NOT automatically delete the .t-sne folder
  • To completely remove all data, manually delete C:\Users\<YourUsername>\.t-sne\

13. CHANGES TO THIS POLICY

Any changes to this privacy policy will be reflected in application updates. The "Last Updated" date at the top will be modified accordingly.

14. CONTACT INFORMATION

For questions or concerns about this privacy policy:

  • Developer: Yu, Yao-hsing
  • Application: t-SNE Explorer
  • Store ID: 9P969D6N7P6J
  • Package Family Name: YuYao-hsing.T-SNE_c5s549jf2x494

15. SUMMARY

t-SNE Explorer is a privacy-focused application that:

  • ✓ Processes all data locally
  • ✓ Does NOT collect personal information
  • ✓ Does NOT transmit user data
  • ✓ Does NOT use analytics or tracking
  • ✓ Gives users full control over their data
  • ✓ Requires internet only for optional MNIST download

Your privacy is important to us. t-SNE Explorer is designed to be completely transparent and respect your data privacy at all times.

Manim Studio Privacy Policy

Last Updated: January 2025

1. INTRODUCTION

Manim Studio is a desktop application for creating mathematical animations using the Manim library. This privacy policy explains how the application handles your data.

2. DATA COLLECTION

Manim Studio does NOT collect, transmit, or share any personal data. All operations are performed locally on your computer.

3. LOCAL DATA STORAGE

The application stores the following data locally on your device:

  • User Settings: Application preferences are saved in a local settings.json file
  • Autosave Files: Code is automatically saved to a local autosave directory for recovery purposes
  • Project Files: Any Python scripts or media files you create are stored in locations you choose
  • Rendered Media: Animation outputs (videos, images) are stored locally in temporary or user-specified directories

4. NO INTERNET DATA TRANSMISSION

Manim Studio operates entirely offline. The application does not:

  • Send any data to external servers
  • Collect analytics or usage statistics
  • Require user accounts or registration
  • Access cloud storage services

5. THIRD-PARTY SERVICES

This application does not integrate with any third-party services that would collect your data.

6. DATA SECURITY

Since all data remains on your local machine, security is maintained through your operating system's file permissions and security measures.

7. USER CONTROL

You have full control over your data:

  • Delete autosave files at any time through the application
  • Remove settings by deleting the settings.json file
  • All project files are stored in locations you specify

8. CHILDREN'S PRIVACY

Manim Studio does not collect any personal information from anyone, including children.

9. CHANGES TO THIS POLICY

Any updates to this privacy policy will be reflected in the "Last Updated" date above.

10. CONTACT

For questions about this privacy policy, please visit the project repository or contact the developer.

This application respects your privacy by design. Your code, animations, and creative work remain entirely yours.

Generalized Covariance Matrix Privacy Policy

Last Updated: November 26, 2025

1. INTRODUCTION

This Privacy Policy describes how Generalized Covariance Matrix ("we", "our", or "the App") handles your information. We are committed to protecting your privacy and ensuring transparency about our data practices.

2. INFORMATION COLLECTION AND USE

2.1 Local Processing

Generalized Covariance Matrix is designed as a local application that runs entirely on your device. We do not collect, transmit, or store any personal information on external servers.

2.2 Data We Do Not Collect

We do not collect:

  • Personal identification information (name, email, address, phone number)
  • Location data
  • Usage analytics or telemetry
  • Device information
  • Cookies or tracking data

3. LOCAL DATA STORAGE

3.1 Temporary Files

The App may create temporary files on your local device during operation, including:

  • Computed results and visualizations
  • Image processing outputs
  • Analysis session data

These files are stored locally in your user directory (e.g., .random_matrix folder) and remain entirely under your control.

3.2 User-Generated Content

Any images, data, or files you import or process within the App remain on your local device. You have complete control over these files and can delete them at any time.

4. THIRD-PARTY SERVICES

The App does not integrate with any third-party analytics, advertising, or tracking services. All computations and processing occur locally on your device.

5. DATA SECURITY

Since all data processing occurs locally on your device, the security of your data depends on:

  • Your device's security settings and protections
  • Your operating system's file permissions
  • Your local backup and security practices

We recommend following standard security best practices for your device and operating system.

6. CHILDREN'S PRIVACY

The App does not knowingly collect any information from children under the age of 13. The App is designed for research, education, and professional use in mathematical analysis and signal processing.

7. CHANGES TO THIS PRIVACY POLICY

We may update this Privacy Policy from time to time. Any changes will be reflected in the "Last Updated" date at the top of this document. We encourage you to review this Privacy Policy periodically.

8. DATA DELETION

Since all data is stored locally on your device, you can delete any data created by the App at any time by:

  • Using the App's built-in folder management features
  • Manually deleting files from your local storage
  • Uninstalling the App

9. OPEN SOURCE

This application is open source. You can review the source code to verify our privacy practices at our GitHub repository.

10. YOUR RIGHTS

Since we do not collect or store any personal data on external servers, traditional data rights (access, rectification, erasure, portability) are not applicable. All your data remains under your complete control on your local device.

11. CONTACT INFORMATION

If you have any questions or concerns about this Privacy Policy, please contact us at:

12. CONSENT

By using Generalized Covariance Matrix, you consent to this Privacy Policy.

This Privacy Policy applies to the Generalized Covariance Matrix application available on the Microsoft Store and other distribution platforms.

EigenDenoise Privacy Policy

Last Updated: May 4, 2026

EigenDenoise ("the App") is a native macOS application developed by Yao-Hsing Yu ("we", "I"). This policy explains, in plain language, exactly what the App does and does not do with your information.

TL;DR

EigenDenoise runs entirely on your Mac. It does not collect, transmit, sell, or share any personal information. There is no account, no login, no analytics, and no advertising SDK.

1. Information we do not collect

We do not collect, store, or transmit any of the following:

  • Your name, email address, or any other identity information.
  • Your IP address, device identifiers (IDFA, IDFV), or hardware fingerprint.
  • Your location.
  • Usage analytics, crash reports, or telemetry of any kind.
  • The contents of the images you load, denoise, or analyse.
  • The contents of any folder you select.

The App contains no third-party analytics, advertising, attribution, or tracking SDKs.

2. Local data the App stores on your Mac

All computation runs on-device. The App stores the following on your Mac only — it never leaves your computer:

  • Image datasets you download. When you click a curated dataset in the Datasets tab, or paste your own image URLs, the files are saved to the App's sandboxed Application Support folder (the macOS equivalent of C:\.eigendenoise), or to a folder you have picked via the "Storage location → Change…" action.
  • A security-scoped bookmark to your chosen storage / image folder, so you do not have to re-pick the folder every launch. This bookmark is stored in the App's own preferences and is readable only by the App.
  • A small UserDefaults preferences entry for non-personal UI settings (last-used parameters, toggle states).

You can delete all of the above at any time by emptying the App's storage folder and removing the App from your Applications folder.

3. Network access

EigenDenoise only makes network requests when you explicitly initiate them, by clicking a dataset preset (ORL Faces / CBSD68 / Brain MRI), clicking "Download" on a custom URL list, or selecting a Help-menu link. In those cases the App fetches:

No personal data is sent in these requests. The requests are made by the system URLSession API and are subject to Apple's standard network privacy protections.

The App does not make any background network calls, does not "phone home" on launch, and does not check for updates from us — all update distribution happens through the Mac App Store.

4. Datasets fetched from third parties

When you download a dataset preset, the files come from a public third-party GitHub repository (e.g. MohamedAliHabib/Brain-Tumor-Detection, clausmichele/CBSD68-dataset, mims-harvard/nimfa). Those repositories have their own owners, licenses, and terms; this policy does not cover them. Please consult the source repository before redistributing downloaded images.

5. Children

The App is not directed to children under 13 and does not knowingly collect any information from anyone, including children.

6. Changes to this policy

If this policy ever changes, the new version will be posted at the same URL with an updated "Last updated" date. Material changes will also be reflected in the App's release notes on the Mac App Store.

7. Contact

Questions about this policy or the App's behaviour:

EigenDenoise is a privacy-respecting macOS application. All processing happens on your Mac, with no telemetry or analytics of any kind.

ManimStudio (iOS) Privacy Policy

Effective date: May 6, 2026

ManimStudio is an offline iPad app for editing and rendering Python/manim animations.

Data we collect: None.

ManimStudio does not collect, transmit, or share any personal data, usage analytics, crash reports, identifiers, or contact information. The app has no servers, no accounts, no telemetry, and no third-party SDKs that collect data.

Files on your device

  • Python source files you edit are saved locally in the app's Documents folder.
  • Rendered videos and images are saved locally to the app's Documents folder, visible in the iOS Files app.
  • A diagnostic log of your local rendering session is written to Documents/Logs/manim_studio.log. This file stays on your device. You can view, share, or delete it from the app's Settings → Diagnostics, or directly via the Files app.

System permissions

  • Photos (add only) — used only when you tap "Save to Photos" in the render-complete dialog. We only write videos/images you explicitly export; we never read your existing photo library.
  • Files / iCloud Drive — used only via the system document picker when you choose to open or save a file. We never browse your files in the background.
  • Camera / Microphone — declared in Info.plist for completeness but not currently used by any feature.

Children's privacy

ManimStudio is not directed at children and does not knowingly collect any data from anyone, including children.

Third parties

None. ManimStudio is an offline app and does not contact any server.

Changes

If this policy changes in a future update, the new version will be published at the same URL.

Contact

euler.yu@gmail.com

ManimStudio (iOS) is fully offline by design. Your code, animations, and rendered media stay on your iPad.

GPS-location-app Privacy Policy

Effective date: May 13, 2026

GPS-location-app respects your privacy. This app is designed to record workout routes and related workout metrics on your device and, where you allow it, through Apple Health / HealthKit.

Information We Collect

GPS-location-app may collect and process the following data on your device:

  • Location data, including GPS route points recorded during workouts
  • Workout data such as start time, end time, duration, distance, pace, and route history
  • Health and fitness data you choose to share through Apple Health / HealthKit
  • Motion and sensor data, such as acceleration and related device measurements, when available and permitted by the system
  • Basic device-generated workout metadata needed to save and display workouts

How We Use Data

We use this data only to provide the app's functionality, including:

  • Recording workouts
  • Displaying workout routes on maps
  • Calculating workout distance and related statistics
  • Showing workout history and long-term analysis
  • Saving supported workout information to Apple Health when permitted

Data Storage

Workout and sensor data is primarily stored on your device. Health-related data written to or read from Apple Health is managed according to Apple's HealthKit framework and your Health permissions.

We do not sell your personal data.

We do not use your workout or location data for advertising.

Data Sharing

GPS-location-app does not sell or rent your personal information. Data is only shared with Apple frameworks such as HealthKit when required for app functionality and only when you grant permission.

Permissions

The app may request access to:

  • Location, to record workout routes
  • Motion and fitness data, where supported
  • Health data through HealthKit, if you choose to enable that integration

You can revoke these permissions at any time in iOS Settings.

Data Retention

Your data remains on your device unless you delete it, remove the app, or remove related Health data from Apple Health, subject to Apple's data handling behavior.

Children's Privacy

This app is not directed to children under 13.

Contact

If you have questions about this Privacy Policy, contact:

GPS-location-app keeps your route and workout data on your device, syncing with Apple Health only when you explicitly grant permission.

Whisper Privacy Policy

Last updated: May 16, 2026

Whisper ("the app") is designed with privacy as a foundational principle. This policy explains, in plain language, what data the app handles and what it does not.

The short version

  • Everything stays on your device. Whisper transcribes audio entirely on-device using Apple's Neural Engine.
  • No accounts. No tracking. No analytics. No ads.
  • No audio, transcripts, or personal data are ever sent to us or to any third-party server.
  • The developer has no servers and cannot see what you record or transcribe.

What Whisper does on your device

When you record audio, import an audio/video file, or select a video from your Photos library, Whisper:

  • Stores the audio temporarily in the app's local sandbox on your device.
  • Runs speech recognition locally using a Whisper model that you download once.
  • Displays the transcript in the app, where you can read or copy it.

The transcript is held in memory and remains local to your device. Nothing about the audio or its contents is transmitted off the device by the app.

What Whisper downloads

Whisper downloads AI model files from Hugging Face's public model hub the first time you use a given model. These downloads contain only the model weights — no user data is sent in either direction beyond a standard HTTPS request. After download, models work entirely offline.

Permissions the app requests

Whisper only asks for permissions strictly required for its features:

  • Microphone — to record audio you explicitly choose to record.
  • Photos / Files — only when you tap the corresponding button to import a file you select.
  • Notifications (optional) — to notify you when a long transcription finishes.
  • Background audio / processing — so transcription can continue if the app is briefly backgrounded.

Each permission is requested through the system prompt and can be revoked at any time in iOS Settings.

Data the app does NOT collect

Whisper does not collect, transmit, sell, or share:

  • Recorded audio or imported media
  • Transcripts or any text generated by the app
  • Device identifiers, advertising IDs, or location
  • Crash reports, usage analytics, or telemetry
  • Email addresses, accounts, or any contact information

Third-party services

Whisper does not embed any third-party SDKs for analytics, advertising, attribution, or tracking. The only external network requests the app makes are to Hugging Face to download the AI model weights you choose.

Children's privacy

Because Whisper collects no personal data, it is safe for users of any age. It does not knowingly collect information from children or anyone else.

Data retention and deletion

All audio files, models, and transcripts live in the app's local container on your device. To delete everything, simply uninstall the app — iOS will remove all associated data automatically.

Changes to this policy

If this policy ever changes, the updated version will be posted alongside the app. Since the app collects no data, any future changes will be limited to clarifications, not new data practices.

Contact

For questions about this policy or the app:

Whisper transcribes speech entirely on-device using Apple's Neural Engine. Your audio and transcripts never leave your iPhone or iPad.