Privacy policy

AppTunes Labs provides Ductfolio. Contact apptuneslabs@gmail.com. Updated 31 October 2026.

Your work on your device

Calculations, jobs, notes, catalog settings and preferences are stored locally. Ductfolio does not send job content to AppTunes Labs or RevenueCat. Your device backups may include app data. When you choose to export or share a file, the destination you select receives it under its own privacy practices.

Purchases and RevenueCat

Apple processes payments; we do not receive payment-card details. Ductfolio uses RevenueCat to retrieve purchase options, verify purchases, restore access and provide purchase-related reporting. RevenueCat can process an anonymous app user identifier, purchase and transaction information and technical context such as app and operating-system version, platform and locale. The SDK can contact RevenueCat on launch even if you do not buy Pro. We do not intentionally send your jobs, notes, name or email to RevenueCat. See RevenueCat’s privacy policy and Apple’s privacy policy.

Support messages

If you email us, we receive your email address and the message and attachments you choose to send. We use them to respond, investigate issues and handle related records. Please avoid sending unnecessary personal or client information.

Retention and choices

You can delete local jobs in the app or remove the app, subject to copies in device backups and exported files. Apple and RevenueCat retain purchase records for purchase validation, restoration, fraud prevention and applicable obligations. Contact us about privacy requests; we may need enough information to identify relevant records. Some records may need to be retained for legal or financial reasons.

Security and international processing

Purchase services use network connections and may process data in countries other than yours. Protect exported files and backups using your own chosen storage controls.

Children and changes

Ductfolio is a professional engineering utility and is not directed specifically at children. We may update this policy as the app or its processing changes.