Privacy Policy
Last updated: March 2026
🔒 Comprendo is designed with privacy at its core. Your documents never leave your device when using Apple Translate.
Overview
Comprendo ("we", "our", or "the app") is a macOS application developed by Rade Cojbasic (RSoft), Montenegro. This Privacy Policy explains how Comprendo handles your information.
We believe in radical transparency: we collect as little data as possible and process your documents locally whenever possible.
What We Do Not Collect
Comprendo does not collect, store, or transmit:
- The content of your PDF documents
- Your name, email address, or personal information
- Device identifiers or usage analytics
- Crash reports or diagnostic data
- Location data
Apple Translate (On-Device)
When you use the Apple Translate engine, all translation processing happens entirely on your device. Your documents are never sent to Apple's servers or any external service.
This requires downloading language packs in System Settings → General → Language & Region → Translation Languages.
Google Translate (Cloud)
When you choose to use Google Translate, the text content of your PDF is sent to Google's Translation API using your own API key. In this case:
- Text is transmitted to Google's servers for translation
- Your API key is stored securely in your Mac's Keychain
- Google's own privacy policy applies to data processed by their API
- We recommend reading Google's Privacy Policy
Using Google Translate is entirely optional. Apple Translate is always available as a private alternative.
Purchases & Trial
All purchases are processed by Apple through the Mac App Store. We do not have access to your payment information. Your trial usage (number of translated pages) is stored locally in your Mac's UserDefaults and is not transmitted anywhere.
Data Storage
Comprendo stores the following data locally on your device only:
- Trial page count (in UserDefaults)
- Google API key (in macOS Keychain — encrypted)
- Selected language preference
- Translated PDF files (saved to your Downloads folder)
Third-Party Services
Comprendo integrates with the following third-party services at your discretion:
- Apple Translation API — on-device, no data transmitted
- Google Cloud Translation API — only when you provide your API key and choose Google mode
- Apple App Store — for purchases and license validation
Children's Privacy
Comprendo is not directed at children under 13. We do not knowingly collect any information from children.
Changes to This Policy
We may update this Privacy Policy occasionally. The latest version is always available at rsoft.me/privacy/comprendo. Continued use of the app after changes constitutes acceptance of the updated policy.
Contact
If you have questions about this Privacy Policy or Comprendo's data practices, please contact us:
support@rsoft.me
Rade Cojbasic · RSoft · Montenegro