DartPDF vs Nodebook
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DartPDF
Edit, annotate, and sign PDF documents directly on your device. This app allows you to fill forms, redact sensitive information, rearrange pages, and even edit text and images within PDFs. All changes are saved locally, ensuring your data remains private.
- Edit text and images
- Fill forms and add signatures
- Redact sensitive content
- Rearrange and export pages
- OCR scanned PDFs
- Full-text search
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DartPDF is a PDF editor that runs entirely on your device. Open any PDF to mark it up, fill in forms, sign it, redact content, rearrange pages, or edit the text and images on the page. Changes save back to the original file. Nothing is uploaded. There's no account, no sync, and no ads. Features: • Highlight, underline, strikethrough, and freehand ink • Shapes, arrows, text boxes, notes, and stamps • Edit existing text and add images • Redaction that removes the covered text and images from the file, not just from view • Fill form fields (text, checkboxes, radio buttons, dropdowns), or add your own • Drawn signatures placed anywhere, plus certificate-backed PAdES digital signatures • OCR scanned PDFs so text can be selected and searched • Reorder, delete, and export pages to a new file • Full-text search, text selection, and links • Compare two versions side by side • Open password-protected files Runs on iPhone, iPad, and Mac. Opens PDFs from the Files app, share sheets, or drag-and-drop. Light and dark themes.
Nodebook
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Nodebook combines a document reader with an infinite mind map. Highlight a passage in a PDF, EPUB, video, audio file or web page, and it appears on your canvas as a node, linked to the exact place it came from. There is nothing to set up. You read, you select a passage, you choose a colour — and the map builds itself. For students, researchers, writers and teachers working with more sources than anyone can keep in their head. READ EVERY FORMAT · Free • Open PDFs, EPUBs, text files and imported web pages, as well as video and audio. • Read continuously or page by page, with chapters and bookmarks. • Every document reopens exactly where you left it. • Documents live on your device. ANNOTATE THE PAGE · Free • Built-in OCR reads scanned books word by word in 12 languages, so a scan highlights like any PDF. • Select an equation, handwritten or printed, and Nodebook renders it as LaTeX. • Write, underline and draw on the page with a stylus, finger or mouse. • Crop any part of a page — diagram, table, photo — and send it to the map. • Insert a notepad mid-page: the PDF opens up for a comment that stays attached to that paragraph. • Six highlight colours let you follow six separate threads. BUILD THE MAP · Nodebook Plus • An infinite canvas with no templates and no limit on nodes or depth. • Drag a single node or a whole branch to reorganise your thinking. • Drop one node onto another to merge them, and separate them later. • Set snippets aside in the drawer, and keep a mini-map in view as you read. • Export the map as a PDF or a FreeMind file, and the outline as a Word document. • Back everything up into one .nodebook file and pick what to restore. OUTLINE AND SEARCH · Nodebook Plus • View the same map as a classic indented outline, and edit titles and text in it. • Search the full text of every snippet, filter by tag or colour, and retag or recolour in bulk. CONNECT YOUR NOTES · Nodebook Plus • Create wiki-links between notes: start typing a title and Nodebook suggests matches. • Click one and a preview shows you the target without losing your place. REVISE WITH FLASHCARDS · Nodebook Plus • Turn any snippet into a flashcard and review it with spaced repetition. • Group cards by area, tag or source, or build your own sets. WRITE YOUR OWN DOCUMENTS · Nodebook Plus • A rich-text editor with headings, lists and quotations. • Draw vector diagrams inside the text, erase single strokes and undo freely. WORK TOGETHER · Nodebook Max • Share a project as a viewer or an editor, and watch the other person's highlights appear live as you work. • Send a file to another account with all your highlights and drawings intact. • Every project keeps a version history with dates and authors, and restores to any point. PLANS • Nodebook is free to install, with the reader and its annotation tools included. • Buy Nodebook Plus once — $39.99 — for full offline functionality, including mind maps creating and editing, flashcards and more. • Subscribe to Nodebook Max for the cloud: sync across your devices, collaboration and version history. $8.99 a month, or $89.99 a year. Max renews automatically. Payment is charged to your Apple Account when you confirm the purchase, and again within 24 hours before each period ends, unless you turn off auto-renew at least 24 hours earlier. Manage or cancel it in your Apple Account settings. Prices are shown in your local currency. Terms of Use: https://nodebook.me/terms Privacy Policy: https://nodebook.me/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: DartPDF at none against Nodebook's 3. Nodebook's advantage is update cadence (daily vs every 4 days). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Nodebook sells 3 in-app purchases, starting at $8.99 per month. DartPDF asks for nothing beyond the download.
DartPDF ships an update every 4 days, Nodebook daily. The most recent releases landed on October 13, 2026 and October 19, 2026 respectively.
| Parameter | DartPDF | Nodebook |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 4 days | Daily — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 53 MB | 145 MB |
| Age rating | 4+ | 17+ |
| Developer | Railway Engineering Solutions Pty Ltd | Kamil Zabiegala |
In-app purchases
DartPDF
No in-app purchases
Nodebook
- Nodebook Max - Monthly14 Days trial$8.991 Month
- Nodebook Max - Yearly14 Days trial$89.991 Year
- Nodebook Plus$39.99









