# Classroom PDF vs SlideDog

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.

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.

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.

## The numbers

| Metric | Classroom PDF | SlideDog |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[4.5 (15 ratings)](https://appshunter.io/ios/app/classroom-pdf/id799652388/reviews)** | — |
| Number of ratings | **15** | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 18 months |
| Monetization | Paid | **Free** |
| Size | 3 MB | 15 MB |
| Requires iOS | **15.6** | 16.4 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Qrayon, LLC](https://appshunter.io/developer/354980265) | [Preseria AS](https://appshunter.io/developer/1376563487) |

## What reviewers say

### Classroom PDF

[App page](https://appshunter.io/ios/app/classroom-pdf/id799652388)

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:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Standard Purchase | Free | one-time |
| Bonus Purchase | Free | one-time |


### SlideDog

[App page](https://appshunter.io/ios/app/slidedog/id1395436863)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked 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.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*