Comparison

ThinkAloud Notes vs PDF nano

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

Head to head
About

ThinkAloud Notes

Record your thoughts and let on-device AI transform them into structured notes with titles, tags, and links. Your data stays private on your phone, with no accounts or subscriptions required. Access and manage your notes as standard Markdown files.

Highlights
  • Voice, photo, and text input
  • On-device AI note generation
  • Automatic tagging and linking
  • Ask questions about your notes
  • Knowledge graph creation
  • Markdown file export
  • Optional cloud sync
Features
Read full description

You think out loud. ThinkAloud writes it down. Hit record and just talk: a passing idea, a meeting, a whole lecture. When you stop, you can play the recording back and decide whether it's worth keeping before anything happens to it. Only then does the on-device AI turn it into a real note, with a title, some structure, tags, and links to the related notes you already have. Here's the part that matters. All of this happens on your phone. ThinkAloud runs Google's Gemma model locally, so your voice and your notes never get uploaded anywhere. There's no account to create, no server in the middle, and nothing to pay every month. You download the model once, and after that it works offline. Your notes are just Markdown files in an ordinary folder, the same format Obsidian uses. Point ThinkAloud at a vault you already have, or let it keep one for you. Either way you can open, edit, or back them up with any app you like. Nothing is trapped inside. What it's good at: - Voice, photos, or quick text go in; clean, tagged notes come out - Ask your notes a question in plain language and get an answer with its sources listed, so you can tap straight through to where each fact came from - A knowledge graph that builds itself as your notes start linking up - Full-text search, tags, folders, and checklists - Optional sync to your own Google Drive or iCloud. Your account, a private folder, no servers of mine in between. No ads, no analytics, no tracking, no accounts. I made ThinkAloud because I wanted a notebook that was actually mine. That's the whole idea. The on-device model needs around 3 GB of free space and a fairly recent device.

About

PDF nano

Edit, translate, and manage PDF documents with a focus on on-device privacy. This app offers tools for scanning, converting, annotating, and organizing your files locally.

Highlights
  • Read, organize, and manage PDFs
  • Offline PDF translation with layout preservation
  • Scan documents and create PDFs
  • Convert PDFs to Word, Excel, or images
  • OCR for Arabic and English text
  • Add signatures and annotations
  • Remove hidden metadata for privacy
Features
Read full description

PDF nano is a comprehensive, professional PDF reader, editor, translator, and manager engineered for speed and privacy. Combining powerful on-device tools with Apple Intelligence, PDF nano delivers a unified workflow tailored for iPhone, foldable iPhone Duo, and iPad—handling your contracts, reports, and paperwork with top-tier security. Key Features: 1. Foldable iPhone Duo & iPad Experience: • Seven Postures Adaptation: Automatic layout across foldable and dual-display devices. • Dual-Screen Book Mode: Side-by-side reading with automatic hinge isolation to prevent content clipping. • Tabletop Mode: Bottom screen transforms into a control deck for drawing, signing, and scrubbing without covering the document. • Dynamic iPad Sidebar: Instant browsing of thumbnails, outlines, and bookmarks beside your canvas. • High-Contrast Navigation Pill: Prominent back button for effortless touch accessibility and zero status-bar overlap. 2. AI Document Assistant (Beta): • Instant executive summaries of lengthy reports, extracting decisions and action items. • Precision risk analysis and contractual obligation detection. • Verifiable Q&A with answers grounded in direct textual citations from your document. • Encrypted Cloud Privacy: Powered by Apple Intelligence and Private Cloud Compute (PCC) to process documents securely without logging or storing data. *Note: AI features require Apple Intelligence-compatible devices. 3. Offline Document Translation (Beta): • Full-document PDF translation entirely offline while preserving layouts, fonts, and tables. • Batch approval to accelerate processing for files up to 100 pages. • Granular paragraph review with selective editing for each translated block. *Note: Translation operates fully on-device. Machine translations may contain errors. 4. Advanced Reading & Viewing: • Dual-Page Continuous View: True book-like reading with native RTL Arabic and LTR layout. • Distraction-Free Guard: Locks editing overlays during reading mode to prevent accidental markups. • Fast-Scrub Vertical Scroll: High-velocity thumb scrubber for jumping through hundreds of pages. • Full Interface Adaptation: Precision safe-area integration around the Dynamic Island and status bar. • Smart Double-Tap Zoom: Rapid focus scaling with an intuitive floating navigation capsule. • OCR Visual Search: Direct in-document search across scanned PDFs with fuzzy and multi-word query support. 5. Conversion & Smart Scanning: • High-Fidelity PDF to Word (.docx) conversion preserving tables and formatting. • Accurate Table Extraction to Excel (.xlsx) with automatic data type inference. • Camera Document Scanner to digitize receipts and paperwork into clean PDFs. • High-quality PDF-to-Image and multi-image-to-PDF conversion pipelines. 6. Editing, Signing & Organization: • Digital signatures: Create, position, and cryptographically sign contracts and forms. • Complete markup suite: Freehand drawing, highlighters, custom text boxes, and annotations. • Page management: Reorder, rotate, extract, or delete pages with fluid drag-and-drop. • Merge & Split: Combine multiple PDFs into one or split large documents into individual files. • Smart PDF Compression: Reduce file size for rapid sharing via email and messaging apps. 7. Industry-Leading Privacy & Security: • 100% On-Device Processing: Reading, editing, translation, OCR, and conversion run locally without uploading files to external servers. • Cryptographic Apple Privacy: AI Assistant requests are strictly restricted to Apple Private Cloud Compute (PCC). • Visual face and sensitive data blurring with hidden metadata sanitization. • Password encryption, native AirPrint support, and Home Screen widgets. Free tier includes daily tool quotas. Unlock unlimited access via in-app purchase. Standard Terms of Use (EULA): https://www.apple.com/legal/sla/

Screenshots

ThinkAloud Notes4 screens
PDF nano4 screens

Verdict

The call

The clearest difference is in-app purchases: ThinkAloud Notes at none against PDF nano's 1. ThinkAloud Notes also leads on iOS requirement (16.0 vs 18.6). PDF nano's advantage is update cadence (every 4 days vs every 2 weeks). On price, rating, ratings volume and ads 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. PDF nano sells 1 one-off in-app purchase. ThinkAloud Notes asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for ThinkAloud Notes against 5.0 for PDF nano. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

UpkeepUpdate frequency

ThinkAloud Notes ships an update every 2 weeks, PDF nano every 4 days. Both last shipped on October 31, 2026.

Scorecard4 real differences · 6 level
ThinkAloud Notes versus PDF nano: the parameters behind the verdict, then further details
ParameterThinkAloud NotesPDF nano
PriceFreeFree
Rating5.0 (2 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings2 — better1
Update frequencyEvery 2 weeksEvery 4 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better18.6
Further details — not scored
Size108 MB25 MB
Age rating4+4+
DeveloperGhanashyam Vinod TattiThamer Mohammed

Customer experience

ThinkAloud Notes

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

PDF nano

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

ThinkAloud Notes

No in-app purchases

1 purchases

PDF nano

One-time1
  • PDFnano Pro Lifetime$4.99

Questions

Is ThinkAloud Notes free?
ThinkAloud Notes is free to download, with no in-app purchases.
Is PDF nano free?
PDF nano is free to download, with in-app purchases available.
Which has better reviews, ThinkAloud Notes or PDF nano?
ThinkAloud Notes and PDF nano are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.
Do ThinkAloud Notes or PDF nano have ads?
Neither ThinkAloud Notes nor PDF nano shows ads.
Which is updated more often, ThinkAloud Notes or PDF nano?
ThinkAloud Notes ships an update every 2 weeks, and PDF nano every 4 days. Most recently, ThinkAloud Notes was updated on October 31, 2026 and PDF nano on October 31, 2026.

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