Comparison

Lumenook vs PDF Editor

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Lumenook

Features
Read full description

Lumenook is a private notebook for the things you'll need again, and an assistant that answers from them with sources. Today is where the day goes in. Save a quick note, a link, a PDF or a screenshot, or record a voice note. Lumenook transcribes it on your device and suggests the decisions, follow-ups, wins and lessons in it. Nothing is filed until you keep it. Ask questions across your library and your voice notes. Every answer shows the passages it came from, and Lumenook says so when your notes don't cover something. Built for iPhone and iPad with Apple Foundation Models on supported devices. Everything stays on your device, with no account, cloud AI, analytics or subscription. Features: - capture notes, PDFs, screenshots, links and voice notes - on-device voice transcription with reviewable suggestions - daily, weekly, monthly, and quarterly reviews with source links - work-status and evidence exports from accepted material - grounded answers with cited passages across your library and voice notes - Projects, tags and saved searches in Library - Simple, Standard and Complete interface levels

About

PDF Editor

Features
Read full description

Document Assistant is the all-in-one PDF toolkit that lives on your device. Scan paper, sign contracts, edit, convert and organize documents in seconds. Your files are processed on your iPhone or iPad and never uploaded to a server. SCAN PAPER TO PDF • Capture documents with your camera, with automatic edge detection and cropping • Save as PDF, searchable PDF with text recognition (OCR), or images • OCR in multiple languages makes scanned text searchable and selectable SIGN AND MARK UP • Draw your signature once and place it on any page • Highlight, underline, add text, notes, shapes and freehand drawings • Redact to permanently black out sensitive information • Works beautifully with Apple Pencil on iPad 35+ PDF TOOLS • Organize: merge, split, remove or extract pages, reorder, rotate and duplicate • Optimize: compress PDFs, repair damaged files, run OCR • Convert to PDF: images, Word, Excel, PowerPoint, RTF, text and HTML • Convert from PDF: Word (DOCX), Excel (XLSX), text and JPG, or extract images • Edit: add watermarks, page numbers and rotations • Security: protect PDFs with a password or remove one you know IMAGE TOOLS • Compress, resize, crop and rotate images • Convert to and from JPG, PNG, HEIC, GIF and TIFF • Add watermarks, upscale images, blur faces automatically, or make a meme SMART FILE LIBRARY • Folders, favorites, recent files and instant search • Create new PDFs from ready-made templates • A 30-day Bin so nothing is lost by accident • Your library is also available in the Files app ASK YOUR DOCUMENTS • Chat with a PDF to get summaries, key points and answers • Runs on-device with Apple Intelligence on supported devices DESIGNED FOR EVERY SCREEN • iPhone, iPad and iPhone Duo, in portrait and landscape • Light and Dark Mode PRIVATE BY DESIGN No account needed. Your documents are processed on your device and are never uploaded. Privacy policy: https://digitalhole.github.io/DHPrivacy.html Standard Apple Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Lumenook4 screens
PDF Editor4 screens

Verdict

The call

The clearest difference is in-app purchases: Lumenook at none against PDF Editor's 1. Lumenook also leads on ads (none vs shown) and update cadence (weekly vs monthly). PDF Editor's advantage is iOS requirement (17.0 vs 26.0). On price and device support there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. PDF Editor sells 1 one-off in-app purchase. Lumenook asks for nothing beyond the download.

UpkeepUpdate frequency

Lumenook ships an update weekly, PDF Editor monthly. The most recent releases landed on October 23, 2026 and October 28, 2026 respectively.

Scorecard4 real differences Ā· 2 level
Lumenook versus PDF Editor: the parameters behind the verdict, then further details
ParameterLumenookPDF Editor
PriceFreeFree
Update frequencyWeekly — betterMonthly
AdsNo — betterYes
In-app purchasesNo — betterYes
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS26.017.0 — better
Further details — not scored
Size7 MB11 MB
Age rating4++4
DeveloperWai Hei LamArima Jain

In-app purchases

None

Lumenook

No in-app purchases

1 purchases

PDF Editor

One-time1
  • Unlock All Features$3.99

Questions

Is Lumenook free?
Lumenook is free to download, with no in-app purchases.
Is PDF Editor free?
PDF Editor is free to download, with in-app purchases available.
Do Lumenook or PDF Editor have ads?
PDF Editor shows ads; Lumenook does not.
Which is updated more often, Lumenook or PDF Editor?
Lumenook ships an update weekly, and PDF Editor monthly. Most recently, Lumenook was updated on October 23, 2026 and PDF Editor on October 28, 2026.

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