OpenIntelligence
Offline Neural Knowledge Base
Free · In-App Purchases · Designed for iPad
23-step RAG pipeline. 100% On-Device. Ask PDFs, get cited answers. HyDE, Reranking, & Graph Packing. No cloud, no accounts. Native iOS Performance.
Turn your documents into an offline neural knowledge base.
Stop digging through PDFs. OpenIntelligence brings enterprise-grade RAG (Retrieval-Augmented Generation) to your iPhone—running entirely on your device.
23-STEP RETRIEVAL PIPELINE. ZERO CLOUD DEPENDENCY.
This is not simple keyword search. OpenIntelligence orchestrates a rigorous 23-step pipeline used by high-end research systems:
• HyDE (Hypothetical Document Embeddings) — Hallucinates an answer to find better semantic matches.
• Hybrid Search — Fuses BM25 keywords with 384-dim neural embeddings for maximum recall.
• Reciprocal Rank Fusion — Mathematically combines retrieval strategies to surface the best hits.
• MMR Diversification — Filters redundant chunks to maximize information gain.
• Cross-Encoder Reranking — Scores every candidate with a dedicated neural model for precision.
• Graph Context Packing — Optimizes the limited token budget using graph theory.
• Parent Document Retrieval — Expands matched sentences to their full paragraph context.
• Lost-in-Middle Mitigation — Reorders context to ensure the AI sees the most critical evidence.
• Semantic Chunking — Splits documents by logic and structure, not just character counts.
• Multi-Column OCR — Metal-accelerated vision processing for complex PDF layouts (360 DPI).
• Agentic Tool Use — Autonomous search, summarization, and comparison capabilities.
THE RESULT?
Ask "What oil does my car take?" and get "SAE 0W-20 synthetic, 5.3 quarts"—with a direct citation you can tap to verify.
DEEP THINK MODE
Standard mode answers in seconds. Deep Think spawns multiple reasoning sessions (Self-RAG), cross-validates evidence, and synthesizes a thorough response. Perfect for legal, medical, or academic research.
100% PRIVATE BY DEFAULT
Everything runs on-device. Your documents never leave your iPhone unless you enable Private Cloud Compute—Apple's zero-retention fallback. No accounts. No uploads. No tracking.
SUPPORTED FORMATS
PDF (native + OCR), Word, Excel, PowerPoint, Markdown, CSV, RTF, TXT, and images.
SUBSCRIPTION OPTIONS
• Pro Monthly: Unlimited documents, all features
• Pro Annual: Save 30% compared to monthly
• Lifetime: One-time purchase, forever access
• Free tier includes core functionality with document limits
Payment is charged to your Apple ID account at purchase confirmation. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. Manage subscriptions in Settings > Apple ID > Subscriptions.
Privacy Policy: https://gunzino.me/openintelligence/privacy
Terms of Use: https://gunzino.me/openintelligence/terms
Ratings & Reviews
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Version 1.1
• Updated descriptions and metadata to accurately reflect the 23-step RAG pipeline.
• Clarified on-device storage and privacy guarantees.
• Documentation improvements.
The developer, Gunnar Hostetler, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Gunnar Hostetler
- Size
- 82 MB
- Category
- Utilities
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - iPad
Requires iPadOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later.
- Languages
- English
- Age Rating
16+
- 16+
- In-App Purchases
Yes
- Pro Monthly ₪19.90
- Document Pack ₪9.90
- Pro Annual ₪179.90
- Lifetime Cohort ₪199.90
- Copyright
- © 2026 Gunnar Hostetler