# Matrix LLM: Offline RAG & Chat — Local LLM & Knowledge Graph

> Local LLM & Knowledge Graph (iPhone/iPad app by Matthias Nordwig.)

- Source: https://appshunter.io/ios/app/matrix-llm-offline-rag-and-chat/id6786311747 (this page in markdown: same URL + `.md`)
- Developer: [Matthias Nordwig](https://appshunter.io/developer/6786312244)
- Category: Productivity, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 16.0 · 79 MB
- Languages: Arabic, Dutch, English, French, German, Hindi, Italian, Japanese, Korean, Polish and 7 more
- Released: 2026-10-14
- Data updated: 2026-10-31

## What is Matrix LLM?

Matrix LLM – Private RAG for your documents

Ask your own files and get answers with sources – right on your iPhone and iPad, offline and private. Researchers, analysts and journalists can work through confidential material on the go without uploading a single page. Matrix combines retrieval-augmented generation (RAG), on-device vector search and an interactive knowledge graph (ontology) in one app.

Key features:
• Local AI built in: language and search models run on the device. On first launch one tap sets them up – no account, no server, works offline.
• Chat with your documents: ask across one or many collections. Every answer cites its sources, and each citation opens the exact passage.
• Attach files to the chat: ask about a file right away, then keep it as a collection or discard it.
• Questions in another language: better matches when your question is in a different language than the documents.
• Older PDFs: update them once and every passage names its exact page.
• Knowledge graph: people, organizations, places and their relationships are extracted automatically and shown as an interactive graph. Export to PowerPoint.
• Tables: ask the same questions of every document and get a table with sources. Export to Excel.
• Documents: PDF, Word, Excel and PowerPoint (also legacy formats), OpenDocument, e-books, e-mails with attachments, HTML, text and images including iPhone photos with text recognition (OCR) – even whole ZIP archives. Many Office formats, including older ones, are read reliably.
• Share menu: send files from other apps to Matrix.
• Spreadsheets: Excel and CSV files become queryable; the assistant calculates exactly with read-only SQL.
• Hybrid search: semantic vector search and keyword search, optionally reranked.
• Cloud optional: connect OpenAI, Azure OpenAI, Anthropic, Google Gemini, any OpenAI-compatible endpoint or an Ollama server on your network.
• Transparent: the Prompt Inspector shows exactly what was sent to the model.
• Privacy first: with local models your files never leave your device.

For research, analysis, journalism, studying and everyone who keeps their documents confidential.

## Is Matrix LLM safe?

Not enough ratings yet to assess Matrix LLM.

## Is Matrix LLM legit?

Matrix LLM: Offline RAG & Chat has limited verification signals. The AppsHunter Legitimacy Score for Matrix LLM is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 2 releases)

### 1.0.2 — 2026-10-29

New: attach files in the chat and ask right away, then keep them as a collection or discard them. Share files from other apps to Matrix. Better matches for questions in another language than the documents. Older PDFs name the exact page after an update. More Office formats are read reliably.

### 1.0 — 2026-10-19

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-31.*