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Contents

  1. Controller
  2. The short version
  3. This website
  4. The MultiVolt app
  5. What is stored on your device
  6. Bluetooth permission
  7. Purchases and subscriptions
  8. Recipients and transfers to third countries
  9. Your rights
  10. Retention period
  11. Children
  12. Changes to this policy

Legal

  • Privacy policy
  • Terms of use
  • Legal notice
  • Withdrawal and refunds

Privacy policy

Last updated: 2026-08-23

Only the German version is legally binding. This translation is provided for understanding.

Go to the binding German version →

Controller

The controller for the processing of personal data within the meaning of the General Data Protection Regulation (GDPR) is:

⚠ Daniel Kofler, sole trader — [street and number], [postal code] [city], Austria. Address to be filled in before publication.

Email: [email protected]

No data protection officer has been appointed; the conditions of Art. 37 GDPR are not met.

The short version

In brief

The MultiVolt app collects no personal data. It establishes no connection to a server operated by the provider — there is none. There is no user account, no sign-in, no analytics and no crash reporting. Whatever the app stores stays on your device. This website sets no cookies and embeds no third-party services.

The text below explains this in detail, separately for the website and the app, because the legal situation differs.

This website

The website consists exclusively of pre-generated files. There is no sign-in, no form, no shopping basket and no comment function.

No cookies
No cookies are set and no comparable recognition techniques are used. That is also why no consent banner appears — there would be nothing to consent to.
No analytics, no advertising
No analytics tools, tracking pixels, ad networks or social media buttons are embedded.
No third-party content
Fonts, images and scripts are served by this website itself. Loading a page establishes no connection to third parties.

When pages are requested, the web server processes technically necessary connection data (server log files): IP address, time, requested address, volume of data transferred, referrer address and browser and operating system identifiers. This processing is necessary to operate and secure the website; the legal basis is Art. 6(1)(f) GDPR (legitimate interest in trouble-free and secure operation). This data is not combined with other sources and no user profiles are derived from it.

⚠ Enter the hosting provider and its registered office and, where required, confirm that a data processing agreement under Art. 28 GDPR is in place. Likewise the actual retention period of the server log files at that provider.

The MultiVolt app

The app collects, processes and transmits no personal data to the provider. It contains no code that opens a network connection to a server operated by the provider, and no such server exists.

In particular, the following do not take place:

  • Creation of a user account or sign-in
  • Recording of usage behaviour, reach or product analytics
  • Transmission of crash or error reports to the provider
  • Embedding of ad networks or advertising identifiers
  • Determining or tracking location

The measurements the app reads from your batteries remain in the memory of the device and are discarded when the app closes. They are neither stored permanently nor transmitted.

What is stored on your device

So that your setup survives a restart, the app stores two records in the protected app storage area on your device. The provider has no access to them.

Setup
Identifier, name, mounting location, colour, protocol and rated capacity of the configured batteries, whether they are wired in parallel, your thresholds and the demo mode switch. No measurements, no events, no history data.
Purchase state
The result of the last query to the App Store or Google Play: whether a subscription is active, which product, until when it runs and when it was last checked. This lets the app keep working when no network is available for weeks.

Both records are removed entirely when the app is deleted. Depending on your device settings they may be included in an operating system backup (iCloud or Google backup); the respective platform operator is responsible for that backup.

Bluetooth permission

The app needs Bluetooth to read the measurements from your batteries. Values are read only; no switching commands are sent to the battery.

On Android 12 and later the app requests the "find nearby devices" and "connect to nearby devices" permissions. The scan is explicitly flagged as not being used to derive location. On Android 11 and earlier the operating system technically requires the location permission for any Bluetooth scan; MultiVolt evaluates no location, stores none and transmits none.

The identifiers of discovered Bluetooth devices are used only to display them on the pairing screen and to find already configured batteries again.

Purchases and subscriptions

MultiVolt Pro is handled exclusively through the Apple App Store or Google Play. The purchase contract is concluded with the respective platform operator, not with the provider of this app.

For this purpose the app contacts the respective store to query available products, start a purchase, complete it and restore earlier purchases. Apple and Google process the resulting data on their own responsibility under their own privacy policies. The provider receives no information from the stores that identifies you as a person; it receives only aggregated sales and settlement reports.

  • Apple: privacy policy of Apple Inc.
  • Google: privacy policy of Google LLC

Recipients and transfers to third countries

No data arising from use of the app is passed to third parties, because the provider holds none. For the operation of the website, the hosting provider acts as a processor.

The provider transfers no data to countries outside the European Economic Area. Whether and where Apple or Google transfer data as part of purchase handling is governed by their own terms.

Your rights

Subject to the statutory conditions, you have the following rights against the controller:

  • Access to the data processed (Art. 15 GDPR)
  • Rectification of inaccurate data (Art. 16 GDPR)
  • Erasure (Art. 17 GDPR)
  • Restriction of processing (Art. 18 GDPR)
  • Data portability (Art. 20 GDPR)
  • Objection to processing based on legitimate interest (Art. 21 GDPR)

In practice this concerns only the server log files of this website, since the provider holds no other personal data. An informal message to the email address above is sufficient.

Irrespective of this you have the right to lodge a complaint with the supervisory authority. The competent authority is the Austrian Data Protection Authority, Barichgasse 40–42, 1030 Vienna, [email protected].

Retention period

Server log files of the website are kept only as long as necessary for operation and security, then deleted. The setup stored on your device remains until you remove it in the app or delete the app.

Children

The app is not directed at children. It collects no data, so no data from children is collected either. The age requirements of the respective store apply to entering into a subscription.

Changes to this policy

This policy is adjusted when the app, the website or the legal situation changes. The version published here is the applicable one; the date of the last change is shown above.

MultiVolt

Battery monitoring for campervans. No account, no server.

[email protected]

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App Store is a trademark of Apple Inc. Google Play is a trademark of Google LLC. All other trademarks named belong to their respective owners; MultiVolt is not affiliated with them.