1. Controller and contact
Barbell Velocity is developed and published by Jakub Skiba, a private individual in Poland. Privacy requests: kubux22@gmail.com.
2. Local processing
Barbell Velocity estimates vertical concentric barbell velocity from a user-selected video. The app is fully offline. Videos, frames, analysis parameters, derived measurements, traces, labels and display preferences are processed locally on the user's Android device. The app has no account system, advertising, analytics, tracking SDK, cloud synchronisation or Internet permission. It cannot send or publish videos or any other data.
When analysis starts, the selected video is copied to private app storage together with results, trace, source filename and settings. These items remain until the user deletes the analysis or removes the app. Android backup is disabled. CSV data leaves private storage only through an explicit user export. Local-only access is not collection by Jakub Skiba.
3. No video submission in the app
The application contains no feature for selecting, attaching, uploading, emailing or publishing development videos. Any contribution separately arranged and manually sent outside the application is a distinct process governed by a separate information-and-consent form supplied before submission; it is not app functionality or app data collection.
4. Optional financial support
The app may open an external support provider such as Buy Me a Coffee. Barbell Velocity does not receive payment-card details. The provider handles visits and payments under its own policy. A contribution unlocks no content or features.
5. Rights and legal basis
Depending on applicable law, a person may request access, correction, deletion, restriction or portability of personal data and may complain to the Polish President of the Personal Data Protection Office (UODO). Normal use of the app does not provide personal data to Jakub Skiba because all app processing remains on the device.
6. Children, security and changes
The app is not directed to children. People under 16 should not submit personal data. Normal processing is minimised and local, but no email or storage system can be guaranteed completely secure. This policy may be updated with a revised effective date and notice of material changes. Mandatory rights remain unaffected.