# Lumenook — Private Notes With Sources

> Private Notes With Sources (iPhone/iPad app by Wai Hei Lam.)

- Source: https://appshunter.io/ios/app/lumenook/id6762566234 (this page in markdown: same URL + `.md`)
- Developer: [Wai Hei Lam](https://appshunter.io/developer/1886319533)
- Category: Productivity, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 26.0 · 4 MB
- Languages: English
- Released: 2026-04-21
- Data updated: 2026-08-04
- User reviews in markdown: https://appshunter.io/ios/app/lumenook/id6762566234/reviews.md

## What is Lumenook?

Lumenook helps you save important personal material and turn it into something you can actually use later.

Capture quick notes, PDFs, screenshots, copied text, and shared links into a private library built for retrieval first. The Simple experience keeps import, Library search, Ask, citations, and import recovery at the front.

Built for iPhone and iPad, Lumenook is designed around Apple Foundation Models on supported devices and keeps the product experience focused on private, local-first understanding instead of cloud-first chat.

Core features:

- save notes, PDFs, screenshots, copied text, and shared links
- ask your library grounded questions with source-backed passages
- search by keywords or natural-language intent
- review highlighted matches and passage snippets
- import or export Markdown notes and review local evidence/source-health checks
- choose Simple, Standard, or Complete interface levels in Settings
- reveal Projects, folders, tags, saved searches, smart collections, compare, timeline, and diagnostics in Standard or Complete
- share into the app from other apps and trigger shortcuts for capture and summary


## Version history (last 5 releases)

### 1.5.13 — 2026-08-03

Lumenook makes local result ranking easier to interpret.

- Documents and exposes the deterministic on-device ranking model more clearly
- Keeps result ordering stable and explainable across repeated searches
- Preserves local analysis with no upload, account, or tracking

### 1.5.12 — 2026-07-17

Lumenook centers import, find, Ask with sources, and save.

Answers show citations and uncertainty, failed imports are recoverable, and large libraries stay responsive. Readable adaptive layouts improve iPhone/iPad text fit while research controls and diagnostics remain optional.

### 1.5.11 — 2026-07-15

Lumenook centers import, find, Ask with sources, and save.

Answers show citations and uncertainty, failed imports are recoverable, and large libraries stay responsive. Readable adaptive layouts improve iPhone/iPad text fit while research controls and diagnostics remain optional.

### 1.5.10 — 2026-06-28

Lumenook 1.5.10 completes the local-safe P0/P1 release-readiness lane.

- Adds a local release-completion audit covering retrieval, citations, Ask budget controls, organization, PDF annotation, storage health, sync visibility, accessibility, and performance evidence
- Keeps ADR 0005 intact: no analytics, hosted services, cloud inference, or privacy-label expansion
- Preserves iPad workspace, grounded-answer, source-jump, and diagnostics evidence in release docs
- Keeps App Privacy aligned with Data Not Collected: no analytics, no crash SDK, no cloud AI, and no login

### 1.5.9 — 2026-06-28

Lumenook 1.5.8 completes the local-safe P0/P1 release-readiness lane.

- Adds a local release-completion audit covering retrieval, citations, Ask budget controls, organization, PDF annotation, storage health, sync visibility, accessibility, and performance evidence
- Keeps ADR 0005 intact: no analytics, hosted services, cloud inference, or privacy-label expansion
- Preserves iPad workspace, grounded-answer, source-jump, and diagnostics evidence in release docs
- Keeps App Privacy aligned with Data Not Collected: no analytics, no crash SDK, no cloud AI, and no login

## More apps by Wai Hei Lam

- [AirBridge](https://appshunter.io/ios/app/airbridge/id6761289809)
- [PocketModel](https://appshunter.io/ios/app/pocketmodel/id6761316670)
- [Relayboard](https://appshunter.io/ios/app/relayboard/id6761518113)
- [NexraHub](https://appshunter.io/ios/app/nexrahub/id6776095447)
- [ParkPack BC](https://appshunter.io/ios/app/parkpack-bc/id6776095671)

All apps by Wai Hei Lam: https://appshunter.io/developer/1886319533

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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 2026-08-04.*