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Screenshots

  • OpenBookLM screenshot 1
  • OpenBookLM screenshot 2
  • OpenBookLM screenshot 3
  • OpenBookLM screenshot 4

About OpenBookLM

OpenBookLM is an AI knowledge workspace for iPad that connects to an Obsidian Vault or document folder so you can search, ask questions, read, and translate your notes. Gather your notes, study materials, research documents, meeting records, drafts, and personal archives in one place, then ask questions. OpenBookLM finds relevant documents in your connected Vault and shows supporting references with its answers. You can go beyond the answer and open cited documents directly to review the original context. This update adds a consistency review feature to help you find conflicting content inside your Vault. You can choose a basis file or folder, check for opposing settings and content, save review results, and clear them when needed. Vault-based answers can also warn you when conflicting information is detected in the referenced materials. Key features: - Connect an Obsidian Vault or document folder - Vault-based search and AI Q&A - View references and citations for each answer - Open cited source documents from answers - Vault consistency review and conflict history management - Basis file/folder-based conflict review - Search by document title, path, tag, or folder - View document outlines and original text - Edit Markdown and text documents - Translate documents and create new translated files - Save translations as Markdown or text - UI support for Korean, English, Japanese, Spanish, German, and French - AI answers matched to your selected language - Supports Apple on-device Foundation Models, OpenAI-compatible API, Local API, and ChatGPT Browser connections - Try quickly with the Demo Vault - Layout optimized for iPad portrait, landscape, and split view - Improved external Vault folder access when using the iPad app in Mac compatibility mode Supported file formats: Markdown(.md, .markdown), Text(.txt), PDF(.pdf), RTF(.rtf), Word(.docx), EPUB(.epub), HWPX(.hwpx) Markdown and text files can be edited in the app. PDF, RTF, DOCX, EPUB, and HWPX files are used by extracting text for search, references, questions, and translation workflows. OpenBookLM works around the Vaults and document folders you explicitly select. When using external folders such as iCloud Drive or Desktop, the app checks whether the selected folder can be accessed and guides you to reconnect if permissions are unavailable. If you experience any issues or have improvement ideas, please let me know. I will review them carefully and reflect them as quickly as possible.

What’s new

Version 1.6 · Updated May 18, 2026

This update improves Vault consistency review and file access reliability. - Added a Vault consistency review tool to find conflicting settings, duplicate references, and opposing content across your local documents. - You can now review conflicts using a selected file or folder as the basis, save review history, and clear it when resolved. - Vault-based answers can now warn you when the referenced local context contains conflicting settings. - Tapping References on an answer now opens the references panel automatically. - Improved external Vault folder access for iPad apps running on Mac, including Desktop and iCloud Drive folders selected through the system picker. - Added a localized “Creator’s Other Apps” section.

App privacy

The developer, JEAHOON BANG, reported these privacy practices to Apple.

Data Linked to You

The following data, which may be collected and linked to your identity, may be used for the following purposes:

  • Location: Coarse Location
  • Identifiers: Device ID, User ID
  • Usage Data: Product Interaction, Advertising Data
  • Contact Info: Email Address
  • User Content: Customer Support, Other User Content

Used for: Third-Party Advertising, Analytics, App Functionality

Data Not Linked to You

The following data, which may be collected but is not linked to your identity, may be used for the following purposes:

  • Diagnostics: Crash Data, Performance Data, Other Diagnostic Data

Used for: Analytics, App Functionality

Alternatives to OpenBookLM

Looking for apps like OpenBookLM? Here are 6 similar apps on the App Store. The highest rated is MDacrobat (5.0/5), and all 6 are free to download.

OpenBookLM vs. alternatives
App Rating Price Last updated
OpenBookLM – Free May 18, 2026
ShortcutQL – Free Jul 14, 2026
InputSmart – Free Nov 14, 2025
Ounie: AI Second Brain – Free Jun 11, 2026
MDacrobat 5.0 / 5 (3) Free Jul 23, 2026
mydocma DK go – Free Sep 18, 2026
Shenzene Workflow – Free Apr 8, 2025