Privacy Policy

Last updated: 13 November 2026

This privacy policy applies to this website and to the ScanStudio app for iPhone and iPad.

Summary

  • ScanStudio has no user account, no advertising, no tracking and no built-in analytics or crash-reporting services.
  • Your scans, photos and recognised text are processed and stored only on your device. We do not run a server for the app and we do not receive your documents.
  • Data leaves your device only when you make it happen: when you share or export, and with automatic export to a destination you set up yourself.

1. Controller

The controller for data processing on this website is:

Walerij Zacher
Beethovenstrasse 1
71732 Tamm
Germany
Email: stewa.studio@icloud.com

We have not appointed a data protection officer, as we are not required to do so.

2. This website

2.1 Hosting and server log files

This website is hosted by united-domains GmbH, Gautinger Straße 10, 82319 Starnberg, Deutschland. We have concluded a data processing agreement with the provider under Art. 28 GDPR. The data is processed exclusively within the European Union.

When you visit the pages, the provider automatically processes data that your browser transmits: IP address, date and time of the request, page requested, previously visited page (referrer), browser type and operating system. This data is needed to deliver the website and to keep it secure and stable. The legal basis is our legitimate interest under Art. 6(1)(f) GDPR. According to our agreement with the provider, the log files are deleted after seven days or the IP addresses in them are shortened.

2.2 Cookies, statistics and embedded content

We do not use analytics or marketing cookies or tracking services on this website. This website sets no cookies at all and loads no content from other servers – no third-party fonts, videos, maps or scripts. All files of this website are stored with our hosting provider.

2.3 Contact by email

If you email us, we process your email address, your name (if given) and the content of your message including attachments in order to answer your enquiry. The legal basis is Art. 6(1)(b) GDPR where your enquiry concerns the use of the app, otherwise our legitimate interest in answering under Art. 6(1)(f) GDPR. We delete messages once the enquiry has been dealt with, unless statutory retention obligations apply.

Please do not send us confidential documents. If a scan is needed to investigate a problem, please use an example without personal data where possible.

2.4 Links to the App Store

This website links to the App Store. If you click such a link, you are taken to Apple, where Apple’s privacy policy applies.

3. The ScanStudio app

3.1 Principle: processing on your device

ScanStudio processes all content on your iPhone or iPad:

  • camera images, page images and your edits (cropping, filters, markup, signatures)
  • text recognition (OCR) using the iOS text recognition (Apple Vision)
  • detection of document type, amounts, dates and deadlines, phone numbers, email addresses, postal addresses, links, IBANs and QR codes
  • the PRO features based on our own neural networks (e.g. finding page edges, removing shadows, folds or moiré, improving text), which are included in the app as Core ML models and run on the device
  • reading aloud with the iOS voices

Your documents, texts and settings are stored in the app’s protected storage area on your device. They are not synchronised via iCloud and not transmitted to us. We have no access to this data. The app contains no advertising and no third-party analytics, tracking or crash-reporting software.

If you have allowed sharing with app developers in the iOS settings under “Privacy & Security › Analytics & Improvements”, Apple provides us with crash reports and usage statistics that do not identify you personally. You can turn this off there at any time.

3.2 Device backups

The app’s data is part of your iPhone or iPad backup if you use iCloud Backup or a backup on a computer. Apple’s terms and privacy policy apply to iCloud backups. If you delete the app, all of its data is removed from your device.

3.3 Permissions and access

  • Camera: to scan documents and measure their size (on devices with LiDAR also using depth data). The images stay on the device.
  • Face ID, Touch ID or device passcode: only if you turn on the app lock under “Settings › Security”. iOS performs the check; the app only learns whether it succeeded and receives no biometric data.
  • Photos: When importing, the iOS photo picker opens. ScanStudio only receives the images you select and has no access to your whole library.
  • Files: When importing PDFs and images and when choosing an export folder, the app only gets access to the files and folders you select.
  • Calendar: Under “Dates”, ScanStudio shows deadlines and appointments found in your documents. When you add one to your calendar, the iOS calendar editor opens, pre-filled with the title, date, time if any, the passage from the document, the document name and, if applicable, the amount. The entry is only saved when you confirm it there. ScanStudio does not request calendar access and cannot read your calendar. If the calendar is synced with a service (e.g. iCloud), that provider processes the entry.
  • Contacts: From a business card you can create a new contact using the iOS contact form. ScanStudio does not read your address book.
  • Spotlight, Siri and Shortcuts: The titles and recognised text of your documents are added to Spotlight search on your device so you can find them via iOS search. Deleted documents are removed from it again.
  • ScanStudio does not use the microphone or your location.

3.4 Apple features

  • Ask your documents: This feature uses the Apple Intelligence language model on your device (iOS 26 or later on supported devices). Your questions and the texts of your documents are processed on the device.
  • Translate: ScanStudio opens the iOS translation feature. Whether translation happens on the device or via Apple’s servers depends on your iOS settings and the languages downloaded; Apple’s privacy policy applies.

3.5 Sharing, exporting and links

When you share, export or print a document (PDF, Word, Excel, JPG, text), it goes to the destination you choose, e.g. another app, AirDrop, email or a printer. The respective recipient or provider is responsible for any further processing.

When you tap a recognised link, phone number, address or QR code, ScanStudio opens the matching app (browser, phone, maps). Only then is data such as the web address or postal address passed to that app or service.

3.6 Automatic export (optional)

Automatic export is off until you turn it on under “Settings › Auto Export”. ScanStudio then sends every new or changed document as a PDF to the destination you set. What is transmitted is the PDF file (for searchable PDFs including the recognised text) and its file name. The file name is built from your template and may contain the title, date, time, document type, amount, page count and folder name. For Paperless-ngx the title is also transmitted.

Possible destinations:

  • A folder in the Files app, e.g. in iCloud Drive or a folder of another storage provider. The transfer is handled by iOS or that provider’s app.
  • WebDAV server, e.g. Nextcloud, your own NAS, MagentaCLOUD, GMX, WEB.DE, STRATO HiDrive, Koofr or pCloud, with user name and password.
  • S3-compatible storage with access key and secret key.
  • Paperless-ngx with server address and API token.

Passwords, keys and access tokens are stored in your device’s keychain and are only sent to the respective service. The transfer goes directly from your device to the service; we receive neither the documents nor the credentials. The terms and privacy policy of the service apply to processing there. For your own servers, please use an encrypted https address.

The “Use mobile data” switch decides whether the export also runs over the mobile network. If it is off, the export waits until your device is on Wi-Fi.

3.7 App Store, download and purchases

The download of the app and all payments are handled by Apple via the App Store. We receive no payment data and no names or email addresses of buyers, only aggregated sales and usage statistics from Apple. Apple’s privacy policy applies.

3.8 Deletion

Deleted documents first go to “Recently Deleted” and are permanently removed after the period you choose under “Settings › Deleted Documents” (default: after one month). If you delete the app, all documents and settings are removed from your device. You must delete copies you have exported or shared at the respective destination yourself.

4. Your rights

Where we process personal data about you (e.g. for an email enquiry), you have the right of access (Art. 15 GDPR), rectification (Art. 16), erasure (Art. 17), restriction of processing (Art. 18), data portability (Art. 20) and to object to processing based on legitimate interests (Art. 21). You can withdraw any consent you have given at any time with effect for the future (Art. 7(3)). Please contact us at the email address above.

You also have the right to lodge a complaint with a data protection supervisory authority (Art. 77 GDPR), for example the authority responsible for our place of business: Der Landesbeauftragte für den Datenschutz und die Informationsfreiheit Baden-Württemberg, Lautenschlagerstraße 20, 70173 Stuttgart.

5. Data security

This website is transmitted encrypted via HTTPS. In the app, your data is kept in the protected storage area of iOS; you can also lock the app with Face ID, Touch ID or your device passcode.

6. Changes

We update this privacy policy when the app, the website or the legal situation changes. The version published here applies.

This English version is provided for convenience. In case of doubt, the German version applies.