last updated 2026-11-01

Privacy Policy

Popline is developed by lei cao ("we"). This policy explains what data the app handles and why.

Overview

Popline adds captions to videos you choose. It works on your device.

What Popline does with your data

When you pick a video, Popline reads it from your Photos library, turns the speech in it into text on your device, and draws captions on the video on your device. When you export, Popline saves the new video to your Photos library and can save a caption file (SRT). Your videos, audio and captions are not sent to us or to anyone else.

What we collect

Nothing. Popline has no account, no analytics, no advertising and no tracking. We do not receive your videos, your speech, your text, your photos, your device identifiers or your location.

Speech models

The first time you caption a language, iOS may download that language's speech model from Apple. That download is handled by iOS under Apple's terms and privacy policy; Popline does not see it.

Children

Popline does not collect personal information from anyone, including children.

Changes

If this changes, we will update this page and the date above.

Contact

Questions about this policy: lei@appfactory.sg.