Privacy policy

1. Privacy at a glance

HyperBook is a private audiobook and music player for local libraries on Android and Ubuntu. It requires no HyperBook account, contains no advertising or behavioural analytics, and does not upload your audio files, library metadata or listening activity to HyperCon. Core library and playback features work offline.

2. Who is responsible

HyperCon Ltd. is responsible for the HyperBook application, product website, package repository and related correspondence. Our address is 167–169 Great Portland Street, Fifth Floor, London, W1W 5PF, United Kingdom. Company No. 13485343. Privacy enquiries can be sent to app@hypercon.tech.

3. Files and device features used by HyperBook

On Android, HyperBook accesses audio files and related artwork only in folders or files that you deliberately select through the Android system file picker. HyperBook processes those files on your device to build and display your local library.

Android may ask for notification permission so HyperBook can show playback status and media controls. Foreground media playback, system media controls, Android Auto and the home-screen widget are used only to provide playback features. These permissions and integrations do not cause HyperBook to send your library or listening history to HyperCon.

On Ubuntu, HyperBook accesses the local library location that you select and uses system media interfaces to provide playback controls.

4. Information kept on your device

Depending on the features you use, HyperBook stores the selected library location, media and chapter metadata, cached cover information, listening progress, favourites, tags, shelves, bookmarks and notes, playlists, queue state, sleep-timer state and application preferences locally on your device.

You can remove application data using the operating system's clear-storage or uninstall controls. Your original audio files remain in the storage location you selected and are not part of HyperBook's application data.

A local diagnostic log may contain file paths and information about library scans, playback and errors. HyperCon does not receive it automatically. You may choose to provide diagnostic information when requesting support.

5. Information HyperBook does not collect

The application does not send HyperCon your audio files, track or book titles, cover art, library contents, listening progress, playback history, bookmarks, notes, playlists, queue, favourites or application preferences. HyperBook has no advertising SDK, analytics SDK, tracking SDK or in-app account system. We do not sell application data or share it with advertisers or data brokers.

6. Website, downloads and correspondence

When you visit app.hypercon.tech, read this policy or download software from packages.hypercon.tech, standard server logs may record your IP address, date and time, requested resource, browser or download client, response status and transferred data. We also keep aggregate download counts that are not connected to a HyperBook account and are not used to profile you.

If you contact us, we process the contact details and message content you provide so that we can answer and manage your request.

7. Purposes and legal bases

Technical connection data is processed on the basis of our legitimate interests in operating a reliable service, protecting it from abuse and diagnosing faults. Correspondence is processed to answer your request, take steps before a contract, perform a contract, support users or comply with law, as applicable.

8. Service providers and sharing

We use infrastructure and security providers, including Google Cloud, to operate the public website and package repository. Providers process limited technical information on our behalf and may use approved subprocessors. Where required, international transfers are protected by an adequacy decision, appropriate contractual safeguards or another lawful transfer mechanism.

The Android operating system, Google Play and a device manufacturer may independently process technical information under their own terms and privacy policies. HyperBook does not add Google analytics or advertising services to the application. We disclose information to public authorities only when required by law.

9. Cookies, security and retention

The public HyperBook portal uses no advertising, profiling or third-party analytics cookies. Strictly necessary mechanisms may be used for security and authenticated administration.

Application information remains on your device until you clear it or uninstall HyperBook. Identifiable server logs are kept only for as long as reasonably necessary for security, reliability and incident investigation, then deleted or anonymised. Correspondence is retained only while needed to handle the matter, meet legal obligations or establish, exercise or defend legal claims.

10. Your rights, children and automated decisions

Depending on the circumstances and applicable law, you may have rights to information, access, correction, deletion, restriction, portability, objection and withdrawal of consent. Contact app@hypercon.tech to exercise a right. You may also complain to the UK Information Commissioner's Office at ico.org.uk/make-a-complaint or to the supervisory authority in your country.

HyperBook is a general-purpose media player and is not directed specifically at children. We do not use HyperBook application data for profiling or automated decisions.

11. Changes and contact

We will update this policy before introducing an optional feature that changes how personal data is handled, such as synchronisation or encrypted backup. The current policy is published with its effective date. Privacy questions can be sent to app@hypercon.tech.