Last updated October 10, 2026
Summary
Multitac does not require a Multitac account or upload your notebooks to a Multitac server. Calculations run on your device. Memory is stored locally. When on-device Insights are available, notebook excerpts are processed by Apple’s on-device model without a cloud AI fallback.
Documents
Your TAC documents are files you create, open, and save. They remain under your control. If you save a document in iCloud Drive, Apple syncs that file according to your Apple Account and iCloud settings. Multitac does not operate a separate document sync service.
Memory
Memory indexes notes and successful calculation results from notebooks opened on the current device. The local index records the notebook and source line, supports search and related-work suggestions, and shows when an entry was last seen.
- Memory does not crawl unrelated files or unopened iCloud documents.
- The index is not embedded in your TAC documents or synced by Multitac.
- You can exclude a notebook, forget individual entries, pause learning, or clear all local Memory.
Insights and TIQs
Where supported, Multitac uses Apple’s on-device Foundation Model for reviewed TIQ proposals and optional Insights. The model receives a bounded selection of source text and calculated results. Multitac validates returned source references before display. Generated suggestions are ephemeral unless you choose to apply them to a document.
Multitac does not send this material to an external AI provider and has no cloud AI fallback.
Diagnostics and analytics
The current Multitac service does not operate its own analytics, advertising, or tracking system. Apple may provide App Store, crash, or diagnostic information under your device settings and Apple’s privacy policies. Any future telemetry added by Multitac will be described here before collection begins.
This website
This website is hosted by GitHub Pages. When you visit it, GitHub may process technical request information such as your IP address, browser details, and requested URL to deliver and secure the site. Multitac does not set advertising cookies or use a website analytics script.
Data sharing and sale
Multitac does not sell personal information. It does not share TAC content with advertisers or data brokers.
Children
Multitac is a general-purpose productivity app and is not directed to children under 13. The app does not knowingly collect personal information through a Multitac account or service because no such account or service exists.
Changes
This policy may change as Multitac approaches release or gains features. The date above will identify the latest version. Material changes to data handling will be described before they take effect.
Contact
Questions about this policy can be sent to privacy@multitac.app.