1. Data Stored on Your Device

• Videos and subtitles: files you import are copied into the app's own storage. They are never uploaded.
• AI subtitles: speech recognition runs on your device with a model built into the app. Your audio never leaves the device.
• Notebook: the words and sentences you collect, their translations, and the video frames and audio clips saved with them.
• Settings and usage: language and playback settings are stored in the app's settings. Free-plan AI subtitle usage is recorded in this device's keychain.

2. Translation

Words and sentences are translated on your device with Apple's Translation framework. The first time you use a language pair, iOS may download the language files from Apple, which handles this under its own privacy policy.

3. Subscriptions and Payments

Subscriptions are purchased through Apple's App Store. We only receive your subscription status from Apple (for example, whether it is active and when it renews). We never receive your name, Apple Account or payment details.

4. What We Don't Do

• No sign-up or login
• No collecting, uploading or selling of your personal information
• No tracking across apps or websites, and no ads

5. Exporting and Sharing

When you export subtitles or share data files, they go to the destination you choose, such as the Files app or another app. We don't receive them.

6. Keeping and Deleting Data

• You can delete videos, subtitles and notebook items in the app at any time.
• The first time an updated version of Duoler opens your data, it first saves a backup of the app database (video list, subtitles and notebook, but not the video files) on your device. The two most recent backups are kept so your data can be restored if an update goes wrong.
• Deleting the app deletes the data and backups it stored on your device. iOS may keep the usage record in the keychain.

7. Children's Privacy

Duoler doesn't collect personal information from anyone, including children under 13.

8. Changes to This Policy

If the way Duoler handles data changes, we will update this policy and the "Last Updated" date above.

9. Contact Us

If you email us, we receive only what you choose to send, such as your email address, your message and any details you include, and we use it only to reply to you.