Comparison

pdf vs READi Members

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

Head to head
About

pdf

Manage and annotate PDF files on your iPad with fast page turning and intuitive finger-writing. Easily import PDFs, organize them into bookshelves, and export annotated versions via email. Features include zoom, cropping, and multiple pen options.

Highlights
  • Fast page turning and scanning
  • Intuitive finger-writing and annotation
  • Easy PDF import via Dropbox, Email, iTunes
  • Categorized bookshelves with search
  • Export annotated PDFs via email
  • Pinch zoom and crop page margins
Read full description

[notice] pdf-notes for iPad (ads) involves advertisements. Paid version is available at http://itunes.apple.com/app/id4172008446 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.

About

READi Members

Features
Read full description

Hydraulic energy recovery system You can control the READi System with your smartphone and see the status of the system. Main features 1. Bluetooth connection with the device (READi device name is started with "READi_xxxxx". You need to select that name.) 2. READi system control (You can select the operation mode(Eco or Power according to machine option)) 3. READi system status and diagnostics status display

Screenshots

READi Members4 screens

Verdict

The call

The clearest difference is in-app purchases: READi Members at none against pdf's 3. READi Members also leads on ads (none vs shown) and device support (3 vs 1). pdf's advantage is update cadence (every 3 weeks vs every 3 months). On price 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 sells 3 one-off in-app purchases. READi Members asks for nothing beyond the download.

UpkeepUpdate frequency

pdf ships an update every 3 weeks, READi Members every 3 months. The most recent releases landed on October 10, 2026 and September 30, 2026 respectively.

Scorecard5 real differences · 5 level
pdf versus READi Members: the parameters behind the verdict, then further details
ParameterpdfREADi Members
PriceFreeFree
Rating3.3 (22 ratings) — better—
Positive reviews68.3% of reviews—
Number of ratings22 — better—
Update frequencyEvery 3 weeks — betterEvery 3 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPadiPhone, iPad, iPod — better
Requires iOS16.014.0 — better
Further details — not scored
Size141 MB6 MB
Age rating4+4+
DeveloperAMuseTec Co., Ltd.READi

Bugs and requests

pdf

Reported bugs

4 issues
  • Annotated PDFs losing data during export
  • Crashes after recent app updates
  • Inconsistent behavior when switching between apps
  • Incorrect page numbering and navigation

Requested features

5 requests
  • Add text typing and editing capabilities
  • Implement a table of contents feature
  • Improve integration with cloud storage services
  • Allow custom organization of PDF files
  • Enhance the note-taking experience

READi Members

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

pdf

One-time3
  • 2-Month Pass$0.99
  • 1-Year Pass$4.99
  • Lifetime License$9.99
None

READi Members

No in-app purchases

Questions

Is pdf free?
pdf is free to download, with in-app purchases available.
Is READi Members free?
READi Members is free to download, with no in-app purchases.
Do pdf or READi Members have ads?
pdf shows ads; READi Members does not.
Which is updated more often, pdf or READi Members?
pdf ships an update every 3 weeks, and READi Members every 3 months. Most recently, pdf was updated on October 10, 2026 and READi Members on September 30, 2026.

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