iCloud Storage & Privacy
FeynmanLM stores your data in your personal iCloud container. This means your flashcards, knowledge base sources, and learning progress sync automatically across all your Apple devices — without ever touching FeynmanLM servers.
How it works
When you create flashcards, add sources, or review cards, all data is written to your private iCloud Documents container. Apple handles sync and encryption transparently:
- At rest — encrypted on Apple's servers with keys derived from your iCloud account.
- In transit — encrypted over TLS between your devices and iCloud.
- On device — protected by your device passcode and the Secure Enclave.
No FeynmanLM server ever sees or stores your content.
What's stored in iCloud
| Data | Location |
|---|---|
| Knowledge base sources | iCloud Drive / FeynmanLM / reading_list.json |
| Chat history & context | iCloud Drive / FeynmanLM / kb_chat.json |
| Generated artifacts | iCloud Drive / FeynmanLM / kb_artifacts.json |
| AI-generated images | iCloud Drive / FeynmanLM / AI_Images/ |
| Book PDFs | iCloud Drive / Documents / FeynmanLM / Books/ |
| Article PDFs | iCloud Drive / Documents / FeynmanLM / Articles/ |
| Paper PDFs | iCloud Drive / Documents / FeynmanLM / Papers/ |
| Course materials | iCloud Drive / Documents / FeynmanLM / Courses/ |
| Podcast transcripts | iCloud Drive / Documents / FeynmanLM / Podcasts/ |
| Flashcards | iCloud Drive / Documents / FeynmanLM / Cards/ |
Flashcards are stored as markdown files in iCloud, so they sync across all your devices just like everything else.
Cross-device sync
Because data lives in iCloud, it syncs automatically to every device signed in to the same Apple ID:
- iPhone — review cards, browse your knowledge graph on the go.
- iPad — read sources and review with the full-screen experience.
- Mac — add content, manage sources, and use the MCP server.
- Apple Watch — quick review sessions from your wrist.
- Apple Vision Pro — immersive spatial review (visionOS).
No manual export, import, or account setup needed. Open the app on a new device and your knowledge base is already there.
What FeynmanLM servers never see
- Your flashcard content
- Your knowledge base sources and chat history
- Your book or article PDFs
- Your podcast transcripts
- Your review history or learning progress
The only network calls FeynmanLM makes are to AI providers (for Feynman Technique evaluation and artifact generation). These calls send only the specific content needed for that request — never your full knowledge base.
Deleting your data
Since everything is in your iCloud account, you have full control:
- Delete the app — removes local data from that device. iCloud data remains until you remove it.
- Delete from iCloud Drive — open Files app → iCloud Drive → FeynmanLM, and delete the folder.
No need to contact FeynmanLM or request data deletion — you own it all.