Last updated: 19 August 2026
tautiu apps do not collect your personal data. There are no accounts, no analytics SDKs, no advertising identifiers, and no tracking across apps or websites. We operate no servers that receive your content.
This policy covers the apps published by tautiu — DeepSRT Transcribe, DeepSRT, Foldic, Recilic, Ripplic, Mergic and Nookic — and this website.
These apps are built to do their work locally. Your files, media, transcripts and folder contents are processed on your own Mac or iPhone and are not uploaded to us. We have no ability to read them.
Some features talk to a third-party service, and they only do so when you have chosen to enable them and supplied your own API key. In that case you are the service's customer, and their terms and privacy policy apply to that request. Nothing is routed through tautiu.
| Stage | Where it happens | What is sent |
|---|---|---|
| Audio extraction and speech recognition (default) | Entirely on your Mac (Apple's on-device speech models) | Nothing. Audio and video never leave the machine. |
| Traditional Chinese proofreading (optional) | Google Gemini API, using your API key | Subtitle text only — never timecodes, never audio, never video. |
| Proper-noun verification with Google Search (optional, off by default) | Google Gemini API with search grounding, using your API key | Transcript text only. |
| Gemini speech recognition (optional, off by default) | Google Gemini API (gemini-3.5-transcribe), using your API key |
The extracted audio. This is the only setting that sends audio off your Mac. Word timings still come from Apple's on-device engine; the app deletes the uploaded audio as soon as transcription finishes. Google's free API tier may use submitted content to improve their products; their paid tier does not. Video is never sent. |
Without an API key the app still produces subtitles, using a conversion built into macOS. Your API key is stored in the macOS Keychain on your Mac and is sent only to Google, never to us.
Apps are distributed through the App Store. Payment is handled entirely by Apple; we never see your payment details. Apple provides us with aggregate sales figures that cannot identify you.
These apps are productivity tools and are not directed at children. We do not knowingly collect information from anyone, including children.
tautiu.dev is a set of static pages hosted on GitHub Pages. There are no cookies, no analytics scripts and no third-party embeds. GitHub may log requests (such as IP addresses) as part of operating the service; see GitHub's privacy statement for details.
Because we hold no personal data about you, there is nothing for us to export or delete. Data held by a third-party service you connected with your own API key is subject to that service's controls, and you can revoke the key at any time.
If this policy changes, the date at the top will change with it, and material changes will be noted in the affected app's release notes.
Questions about privacy: tautiu.dev@gmail.com