Onehand Booknotes vs PDF Compact
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Onehand Booknotes
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It quickly summarizes from books and captures paper notes via barcode registration or OCR. Its quiet UI preserves mental space, transforming daily insights into tangible assets by capturing fleeting thoughts and flashes of inspiration. “Recommended for” - Businesspeople who want to quickly digitize documents - Working professionals and students who want to take reading notes efficiently - Creators seeking inspiration for ideas - Students preparing for exams who want to manage study notes on their smartphones “Features” - High-Precision OCR Recognition - Automatically detects Japanese vertical/horizontal writing - High-accuracy text conversion using cutting-edge character recognition technology - Supports a wide range of materials: books, magazines, even handwritten notes Organization Features - Automatically retrieve book information via barcode scanning - Freely categorize notes using categories and tags - Manage web pages together by saving URLs - Supports multiple images (attach multiple photos to one note) iCloud Backup (Premium) - Safely back up all data - Share data across multiple devices - Export/import in JSON format
PDF Compact
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PDF Compact is the fast and easy solution to reduce the size of large PDF files directly on your iPhone or iPad – and now it also converts images into PDFs that you can compress instantly. Whether for email, cloud uploads, government portals, or archiving: PDF Compact reliably reduces the file size of your documents with just a few taps. New Features Import images & convert them to PDF Select a photo from your gallery – PDF Compact instantly creates a PDF that you can compress right away. ** Features ** - Select & view PDFs or images Open PDFs directly from Files, iCloud, or other apps – or import an image from your photo library. - Efficient PDF compression Choose between different compression levels such as Small or Medium – optimized for sending or storing. - Preview before saving Check the result immediately before saving or sharing it. - Smart file naming Compressed PDFs are automatically saved with a suffix like “_small” or “_medium”. - Share & send Share your compressed PDFs via email, messenger apps, or AirDrop. - Privacy‑friendly Your documents are used only for processing – no permanent storage without your consent. Perfect for Emails with size limits Uploads to portals & authorities School, work & office Quick sharing on the go PDF Compact makes large PDFs small – now even from images. Simple, fast, and reliable.
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Verdict
The clearest difference is in-app purchases: PDF Compact at none against Onehand Booknotes's 2. PDF Compact also leads on ads (none vs shown). Onehand Booknotes's advantage is update cadence (weekly vs every 5 months) and iOS requirement (17.6 vs 26.0). On price 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
Both are free to download. Onehand Booknotes sells 2 in-app purchases, starting at $3.99 per month. PDF Compact asks for nothing beyond the download.
Onehand Booknotes ships an update weekly, PDF Compact every 5 months. The most recent releases landed on October 8, 2026 and September 28, 2026 respectively.
| Parameter | Onehand Booknotes | PDF Compact |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly — better | Every 5 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.6 — better | 26.0 |
| Further details — not scored | ||
| Size | 5 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Naoto Sato | Gerhard Lentschik |
In-app purchases
Onehand Booknotes
- Monthly_Premium$3.991 Month
- Yearly_Premium$29.991 Year
PDF Compact
No in-app purchases
Questions
Is Onehand Booknotes free?
Is PDF Compact free?
Do Onehand Booknotes or PDF Compact have ads?
Which is updated more often, Onehand Booknotes or PDF Compact?
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