Comparison

NousPDF vs ReflowPDF

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

Head to head
About

NousPDF

Features
Read full description

Chat with any PDF offline. The AI runs entirely on your iPhone. NousPDF is an offline AI PDF reader and PDF summarizer a compact language model runs directly on your device after a one-time download. Your documents, chats and AI replies stay on your iPhone. Ask questions, summarise papers, search by meaning once the model is installed, the AI chat works fully offline, anywhere. CORE AI ON YOUR DEVICE Chat PDF: ask anything, receive grounded answers with citations PDF summarizer: summarise long reports in a single tap Semantic Search: find ideas, not just keywords, using local embeddings After a one-time model download, works fully offline no account, no third-party AI subscription, no API key OCR & SCANNING Handwriting OCR: turn lecture notes and revision cards into searchable text PDF scanner app: auto-crop, de-skew and enhance contrast Multi-language text recognition PDF TOOLS PDF annotator: highlight, add text and signatures PDF merger: combine documents with drag-and-drop PDF split: extract or rearrange pages instantly PDF compressor: reduce file size without losing quality PDF converter: convert to and from PDF Word, images and more Organise a PDF from photos in seconds PRIVACY FIRST BY DESIGN GDPR compliant. Your PDFs, chats and AI outputs stay on your device. The AI runs locally on your iPhone's GPU prompts never leave the device for an AI server. One-time model file is fetched after that, no document, chat or embedding is ever uploaded. No built-in analytics, no crash reporting SDK. App is ad supported with transparent consent. WHO IS IT FOR? Students working on revision, coursework and dissertations Researchers analysing long scientific papers Solicitors, consultants and professionals handling confidential contracts Anyone who prefers not to upload private documents to a cloud AI WHY NOUSPDF? Most AI PDF apps stream your files to a remote server on every question. NousPDF takes the opposite approach the intelligence comes to your document. You get the benefits of AI without sending your content to a third-party AI provider, and after setup it keeps working with no signal at all. Download NousPDF and read your PDFs intelligently, on your device.

About

ReflowPDF

Transform scanned PDFs and regular documents into easily readable text with adjustable formatting. Seamlessly switch between a reflowed reading mode and the original document for verification. Process documents privately on your device with no uploads or tracking.

Highlights
  • Reflow scanned and text-based PDFs
  • Adjust font size, typeface, and line spacing
  • Switch between Reader Mode and original PDF
  • Search text and add bookmarks
  • Export recognized text as TXT
  • Create searchable PDFs
  • On-device OCR and processing
Features
Read full description

Read scanned PDFs without zooming. Scanned pages should be as comfortable to read as any article. ReflowPDF turns scanned books, papers, archives, and regular PDFs into clean, reflowed text designed for your iPhone and iPad. Import a document, process it on device, and read without constantly zooming or panning. READER MODE FOR PDFS • Reflow scanned and text-based PDFs into adjustable text • Choose font size, typeface, line spacing, and reading theme • Keep your reading progress and return where you left off CHECK THE ORIGINAL ANY TIME • Move between Reader Mode and the source PDF • Jump from a paragraph to its original page for quick verification • Search text, add bookmarks, and navigate document headings PRIVATE BY DESIGN • OCR and document processing happen on your device • Your PDFs and recognized text are not uploaded • No account, in-app analytics, advertising, or tracking USE YOUR RESULTS • Export recognized text as TXT • Create a searchable PDF while preserving the original pages • On supported devices, generate an on-device summary with Apple Intelligence The free version includes full processing for three standard documents. An optional one-time Lifetime unlock removes document limits and unlocks full large-document processing and export. OCR and document structure accuracy depend on scan quality, language, and page layout.

Screenshots

NousPDF4 screens
ReflowPDF4 screens

Verdict

The call

The clearest difference is in-app purchases: NousPDF at none against ReflowPDF's 1. NousPDF also leads on iOS requirement (16.4 vs 26.0). ReflowPDF's advantage is ads (none vs shown). On price, update cadence and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. ReflowPDF sells 1 one-off in-app purchase. NousPDF asks for nothing beyond the download.

UpkeepUpdate frequency

NousPDF ships an update every 4 weeks, ReflowPDF fortnightly. The most recent releases landed on October 24, 2026 and October 21, 2026 respectively.

Scorecard3 real differences · 7 level
NousPDF versus ReflowPDF: the parameters behind the verdict, then further details
ParameterNousPDFReflowPDF
PriceFreeFree
Rating—4.3 (3 ratings) — better
Positive reviews—66.7% of reviews
Number of ratings—3 — better
Update frequencyEvery 4 weeksFortnightly — better
AdsYesNo — better
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.4 — better26.0
Further details — not scored
Size72 MB8 MB
Age rating4+4+
DeveloperDuong The亚雄 邹

In-app purchases

None

NousPDF

No in-app purchases

1 purchases

ReflowPDF

One-time1
  • ReflowPDF Lifetime$4.99

Questions

Is NousPDF free?
NousPDF is free to download, with no in-app purchases.
Is ReflowPDF free?
ReflowPDF is free to download, with in-app purchases available.
Do NousPDF or ReflowPDF have ads?
NousPDF shows ads; ReflowPDF does not.
Which is updated more often, NousPDF or ReflowPDF?
NousPDF ships an update every 4 weeks, and ReflowPDF fortnightly. Most recently, NousPDF was updated on October 24, 2026 and ReflowPDF on October 21, 2026.

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