pdf vs Absolute Board Calendar
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Manage and annotate PDF files on your iPad with fast page turning and intuitive finger-writing. Easily import, organize, and share your notes with friends. Offers a seamless reading and editing experience.
- Fast page turning and content scanning
- Intuitive finger-writing with zoom-in
- Easy PDF import via Dropbox, Email, or iTunes
- Organized bookshelves with search
- Variety of pens, highlighters, and text notes
- Export annotated PDFs via email
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Utilize pdf-notes to manage all the pdf files on your iPad. Fast display, quick page-turning even a thousand pages, useful finger-writing and email your notes to your friends. Differentiation-1. While turning pages of paperbooks fast, you can glance over the pages. While turning pages of pdf-notes fast, you can still run over the contents. Speedy page turning and scanning the contents with pdf-notes or paperbooks. Differentiation-2. There are many pdf readers allow you to annotate; but do you know which app allows you can write any notes in a second? If you are using pdf-notes, you may experience very fast and intuitive finger-writing like: zoom-in and note by double-tap or; writing with one finger, page-turning with two fingers, pen-changing with three fingers. - Easy importing PDF files through (DropBox, Email or Safari's) "Open In..." or iTunes - Categorized multiple bookshelves(booklists) with powerful search - Displaying pages as optimized size 1024x768 of iPad - Portrait and landscape view - Pinch zoom and crop page-margins - Fast loading and Speedy page-turning - Finger-writing with a variety of pens, highlighters and text notes - Easy "zoom-in and note" on a magnified screen by a double tap - One-step page-turning using 2 fingers on editing mode - One-step pen-changing or undo/redo using 3 fingers on editing mode - Exporting annotated PDF files to Email - External display and screen brightness controls - AirPrint and multi-tasking Misunderstandings about pdf-notes: - Not only pdf-notes but every app recently updated is removed from the open-in menu because iOS5 or formers currently show only 10 apps in open-in menu. - iPad/iphone Mail/iBooks can't display PDF annotations so that please open it in the other pdf apps. - please visit the support site for more information http://bit.ly/f6D31P Blog http://pdf-notes.com Email musebook@musebook.com Twitter http://twitter.com/musebook4u YouTube http://youtu.be/4AyRyFq9yxg NOTE: All content contained herein is subject to change without notice.
Absolute Board Calendar
This app allows users to plan their day and take notes through drawing and handwriting. It offers unlimited pages for daily entries and organizes them chronologically, providing a unique and convenient way to manage your life.
- Drawing and handwriting daily planning
- Unlimited pages for notes and ideas
- Calendar from 1900 to 2043
- Customizable holidays
- Solar and lunar date conversion
- Unlimited board size
- Email drawing snapshots
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Absolute Board Calendar is the first functional app derived from Absolute Board which is the best quality drawing and handwriting App in AppStore. ## Absolute Board ## * April 2011 - "New & Noteworthy" (Productivity) application on the American App Store * * April 2011 - "What's Hot" (Productivity) application on the American App Store * * April 2011 - "Staff Favorites" (All) application on the Korean App Store * * April 2011 - "No. 1 Free App" (Productivity) application on the Korean App Store * Our new app 'Absolute Board Calendar' is innovating functional app beyond other calendar app. Just keep your everyday life through drawing & handwriting. You can draw & write unlimited quantity of pages in a day. Absolute Board Calendar provide you sorting pages day by day. It's so simple and convenience. Through the high speed and quick response that you're already experiencing in Absolute Board, Now you can create your own genuine diary and idea note organized daily. With Absolute Board Calendar, make your powerful functional calendar which was never existed before. ▶ Drawing &handwriting type daily planning + idea note (Unlimited quantity) ▶ Calendar from 1900 to 2043 with presenting solar & lunar date. ▶ Customized holiday setting ▶ Converting solar - lunar date of special day ▶ Day count ▶ Unlimited board size ▶ Unlimited color choice for pen & background ▶ Path traceable eraser ▶ Ability to email snapshot of your drawing ▶ Zooming in/out & moving with two fingers ▶ Undo/Redo functions ▶ Import a Photo ▶ Print Snapshot (Air Print)
Verdict
The clearest difference is rating: pdf at 4.4 against Absolute Board Calendar's 3.6. pdf also leads on update cadence (every 2 weeks vs every 2 months) and ratings volume (27 vs 8). Absolute Board Calendar's advantage is price ($2.99 vs $9.99) and iOS requirement (12.0 vs 16.0). On review sentiment, ads, in-app purchases 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
pdf costs $9.99 and Absolute Board Calendar $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
pdf holds the better App Store score, 4.4 against 3.6. Both are backed by a comparable volume of ratings — 27 and 8 respectively. Written reviews complicate that: 72% of pdf's written reviews are positive against 74% of Absolute Board Calendar's, so the app with the better star average is not the one people write more warmly about.
pdf ships an update every 2 weeks, Absolute Board Calendar every 2 months. The most recent releases landed on October 16, 2026 and October 15, 2026 respectively.
| Parameter | Absolute Board Calendar | |
|---|---|---|
| Price | $9.99 | $2.99 — better |
| Rating | 4.4 (27 ratings) — better | 3.6 (8 ratings) |
| Positive reviews | 71.5% of reviews | 73.8% of reviews — better |
| Number of ratings | 27 — better | 8 |
| Update frequency | Every 2 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPad | iPad |
| Requires iOS | 16.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 138 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | AMuseTec Co., Ltd. | Hyeoseong Hwang |
Customer experience
Absolute Board Calendar
In-app purchases
No in-app purchases
Absolute Board Calendar
No in-app purchases









