ThinkdownPrivacy
Last updated 12 October 2026
Your notes are often the most personal things you write. Thinkdown keeps them for one purpose: turning what you say into notes you can read, search and sync across your own devices. We don't sell your data, show ads, or use your notes to train AI models.
What Thinkdown stores
| Data | Why |
|---|---|
| Your recordings | To transcribe them, and so you can play back what you actually said |
| Transcripts, notes, versions, folders and tags | They are your notes |
| Writing styles and settings | So every device rewrites the same way |
| Your glossary and About-me profile | To spell your people, places and terms correctly |
| Text extracted from documents you add | As context for rewrites. The original file is not kept. |
| Your Apple ID's anonymous identifier, the email Apple shares (which can be a private relay address) and a session per device | To sign you in. Thinkdown never sees your Apple password. |
Each device also keeps a full copy of your notes so Thinkdown works offline. The website you're reading now has no analytics, cookies or trackers.
Who else processes it
Two AI providers do the transcription and the rewriting. They receive only what each step needs, through their business APIs, which don't use your data to train models. They process it only to provide this service to you, and they protect it at least as well as this policy does.
- OpenAI transcribes your audio. It receives the recording and a short list of names from your glossary as spelling hints.
- Anthropic (Claude) rewrites the transcript into a note. It receives the transcript, your chosen style, your glossary and profile, and passages from your documents that relate to the note.
Your consent to AI processing
Thinkdown asks before it sends anything to OpenAI or Anthropic. Until you agree, you can still record, and your recordings stay on your device and are not uploaded or transcribed. You can withdraw consent at any time in Settings > Privacy. From then on nothing new is sent to either provider.
Deleting your data
- Deleting a note moves it to the trash, where you can restore it for 30 days. After that the note, its earlier versions and its audio are deleted for good.
- You can choose to have recordings deleted automatically after a set number of days. The note and transcript stay.
- Glossary entries and documents can be removed at any time from “What Thinkdown knows”.
Your account
You can delete your account in the app under Settings > Account. This immediately deletes your notes, recordings, documents, glossary and profile from our server, signs out every device, and revokes Thinkdown's access to your Apple ID. Daily database backups are overwritten within 7 days, after which no copy remains.
Security
Everything travels over encrypted connections. Sign-in uses Sign in with Apple; sessions are stored as one-way hashes, so a copy of the database can't be used to sign in as you.
Contact
Questions about privacy, your data or the app: [email protected].
Changes
Thinkdown is in private testing. When it opens to the public on the App Store, this page will be updated, and the date at the top will change.