Comparison

Classroom PDF vs SlideDog

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

Head to head
About

Classroom PDF

This app helps educators annotate and grade PDF documents, worksheets, and slide decks directly on their iPad. It features tools for drawing, pointing, zooming, and wirelessly projecting content to a classroom projector. Organize and share annotated files with students or export them to other apps.

Highlights
  • Annotate PDFs and slides
  • Grade worksheets
  • Toggle answer covers
  • Wireless projection via AirPlay
  • Draw, point, and zoom tools
  • Organize files with categories
  • Share annotated files
Features
Read full description

Classroom PDF is designed with unique features to fit your teaching workflow. Use it to grade worksheets and walk-through answers in class. DESIGNED FOR TEACHERS There are lots of PDF apps out there, but Classroom PDF was designed specifically for classroom use. It has special features to make walking through worksheets and in-class quizzes easier. OPEN PDF FILES AND EXPORTED SLIDE DECKS Open any PDF file from other Apps (“open in…" from Dropbox etc.). You can even export PDFs directly from Keynote. ADD COVERS AND TOGGLE WITH A TAP Add covers over answers to questions, and tap to toggle them. Great for in-class quizzes or to enhance class participation. PROJECT WIRELESSLY VIA AIRPLAY Use an AppleTV or physical connector to mirror the iPad's screen to a projector. Walk around the class, and work 1:1 with students. DRAW, POINT, AND ZOOM Annotate documents with smooth ink. Write in answers or grade worksheets. Use the virtual laser-pointer to call out parts of the page. SHARE ANNOTATED FILES Email annotated or graded files to students. You can also export PDFs to 3rd party Apps such as Dropbox. STORE AND ORGANIZE ALL YOUR FILES Keep all your PDF files neatly organized with color coded categories. WE BUILD TOOLS FOR PEOPLE WHO CHANGE THE WORLD You guys have an important job, and it matters to us that you find our Apps helpful in your work. We work really hard to make sure we create the best tools possible, but we also realize that everyone's workflow is slightly different. If you have any thoughts on other features or capabilities you would find useful in your daily work, please do let us know. Your input helps us prioritize our schedules. You can reach us via the feedback page. Thanks for doing the work that you do. We hope that you find Classroom PDF helpful in its small way. Warm regards, - The App Makers @ Qrayon.

About

SlideDog

Control your desktop presentations from your phone. Seamlessly switch between various file types including PDFs, videos, and web pages. Engage your audience with live polls and feedback.

Highlights
  • Control presentations remotely
  • Switch between PowerPoint, PDF, videos, web pages
  • Display YouTube and MP3 files
  • Conduct live polls and collect feedback
  • View speaker notes on mobile
  • Audience can ask questions live
Features
Read full description

The SlideDog desktop application is a powerful presentation tool that seamlessly switches between presentation files and makes it easy to present like a professional. You need SlideDog for Windows to use this app. Supported file types: - PowerPoint - PDF - Videos - Web pages - Prezi - Youtube - MP3 - Interactive elements (Poll, Feedback & Chat) With the SlideDog iOS app, you can control SlideDog running on your Windows PC. You can advance slides, play and pause videos, see your PowerPoint notes, and seamlessly navigate between files — all from your phone. The audience can follow the presentation live, ask questions, answer polls, and provide feedback.

Screenshots

SlideDog4 screens

Verdict

The call

The clearest difference is price: SlideDog at Free against Classroom PDF's $9.99. SlideDog also leads on in-app purchases (none vs 2). Classroom PDF's advantage is update cadence (every 4 months vs every 18 months). On review sentiment, ads, device support and iOS requirement 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

SlideDog is free to download; Classroom PDF costs $9.99 up front. Classroom PDF sells 2 one-off in-app purchases. SlideDog asks for nothing beyond the download.

UpkeepUpdate frequency

Classroom PDF ships an update every 4 months, SlideDog every 18 months. The most recent releases landed on September 24, 2026 and October 3, 2026 respectively.

Scorecard4 real differences · 6 level
Classroom PDF versus SlideDog: the parameters behind the verdict, then further details
ParameterClassroom PDFSlideDog
Price$9.99Free — better
Rating4.5 (15 ratings) — better—
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings15 — better—
Update frequencyEvery 4 months — betterEvery 18 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationPaidFree — better
DevicesiPadiPhone, iPad — better
Requires iOS15.6 — better16.4
Further details — not scored
Size3 MB15 MB
Age rating4+4+
DeveloperQrayon, LLCPreseria AS

Customer experience

Classroom PDF

All ratings15 ratings
Positive86.7%
Neutral6.7%
Negative6.7%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

SlideDog

Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Classroom PDF

One-time2
  • Standard PurchaseFree
  • Bonus PurchaseFree
None

SlideDog

No in-app purchases

Questions

Is Classroom PDF free?
Classroom PDF costs $9.99, and also offers in-app purchases.
Is SlideDog free?
SlideDog is free to download, with no in-app purchases.
Do Classroom PDF or SlideDog have ads?
Neither Classroom PDF nor SlideDog shows ads.
Which is updated more often, Classroom PDF or SlideDog?
Classroom PDF ships an update every 4 months, and SlideDog every 18 months. Most recently, Classroom PDF was updated on September 24, 2026 and SlideDog on October 3, 2026.

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