Comparison

PDF Notes S vs Count

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

Head to head
About

PDF Notes S

This app offers a dual-page PDF viewer with smooth scrolling and fast page turns. It also provides document management, quick previews of various file types, and annotation tools. An upgrade removes ads and unlocks full functionality.

Highlights
  • Dual-page PDF viewer
  • Horizontal/vertical scroll and page turns
  • Document browser for file organization
  • Quick Look for various file types
  • ZIP file preview without unzipping
  • 8 handwriting tools
  • Cache manager for fast page turns
Read full description

PDF Notes S gives you a 2 pages viewer with horizontal/vertical scroll, and cache for fast page turns, and thumbnails scrollbar. PDF Notes S gives you ZIP Preview, Quick Look of documents, images, music, videos, and etc. PDF Notes S gives you Document Browser so that you can organize all your files very easily. PDF Viewer - 1 page or 2 pages, horizontal or vertical fast page turns - Scroll or page turns by tap on sides - 8 handwriting tools that you can adjust color and line width - Horizontal or vertical thumbnails scrollbar - PDF outlines, bookmarks, and annotations list - PDF search - Cache manager supports 3 modes, permanent cache, automatic cache, and no cache Quick Look, ZIP Preview - PDF, RTF, TEXT - iWork documents, Office documents - Images, Music, PiP Videos - Without Unzip, preview ZIP contents (password may be requested if locked) Advertisements before upgrade - Banner ads can be shown at the bottom - Interstitial ads can be shown per 30 minutes Information about the auto-renewable nature of the subscription - Payment will be charged to iTunes Account at confirmation of purchase. - Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. - Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal. - Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. - Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. A link to privacy policy and terms of use - http://blog.musebook.com/2017/03/privacy-policy.html The length of the subscription - Monthly or Yearly NOTE: All content contained herein is subject to change without notice.

About

Count

Read full description

Numerical computation and analysis at your fingertips! Access a multitude of traditional mathematical functions to support the performance of numerical computation workloads, all within a convenient and easy to use touch interface. Start by searching and browsing through a directory of available functions. You can identify commonly used operations as favorites too, for convenient and quick access later. As you work the application will accelerate your workflow by keeping track of your recently executed operations and their corresponding results, which are conveniently available as inputs in subsequent calculations. Features Include: o Adjust display settings for numerical precision and the number of matrix elements shown in the primary output window. o Show a detailed display to view a result in full precision at any time. o Save a result and access its value as an input in another calculation. o Enter ‘editing mode’ to delete or rearrange results in your current session. o Provide your current session a title and save it to pick up where you left off later.

Screenshots

PDF Notes S4 screens
Count4 screens

Verdict

The call

The clearest difference is in-app purchases: Count at none against PDF Notes S's 2. Count also leads on ads (none vs shown). PDF Notes S's advantage is iOS requirement (13.0 vs 15.5). 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. PDF Notes S sells 2 in-app purchases, starting at $0.99 per month. Count asks for nothing beyond the download.

UpkeepUpdate frequency

PDF Notes S ships an update every 6 weeks, Count monthly. The most recent releases landed on June 10, 2026 and May 15, 2026 respectively.

Scorecard3 real differences · 7 level
PDF Notes S versus Count: the parameters behind the verdict, then further details
ParameterPDF Notes SCount
PriceFreeFree
Rating4.2 (5 ratings) — better—
Positive reviews52.9% of reviews—
Number of ratings5 — better—
Update frequencyEvery 6 weeksMonthly — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.5
Further details — not scored
Size22 MB6 MB
Age rating4+4+
DeveloperAMuseTec Co., Ltd.Krishan Malhotra

In-app purchases

2 purchases

PDF Notes S

Subscriptions2
  • Monthly Plan$0.991 Month
  • Yearly Plan$9.991 Year
None

Count

No in-app purchases

Questions

Is PDF Notes S free?
PDF Notes S is free to download, with in-app purchases available.
Is Count free?
Count is free to download, with no in-app purchases.
Do PDF Notes S or Count have ads?
PDF Notes S shows ads; Count does not.
Which is updated more often, PDF Notes S or Count?
PDF Notes S ships an update every 6 weeks, and Count monthly. Most recently, PDF Notes S was updated on June 10, 2026 and Count on May 15, 2026.

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