# Simple Blackboard vs Whiteboard Infinite PDF Canvas

The clearest difference is rating: Whiteboard Infinite PDF Canvas at 4.9 against Simple Blackboard's 4.3. Whiteboard Infinite PDF Canvas also leads on ads (none vs shown) and update cadence (every 11 days vs every 9 months). Simple Blackboard's advantage is ratings volume (139 vs 19) and iOS requirement (15.6 vs 26.0). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Simple Blackboard sells 1 one-off in-app purchase and Whiteboard Infinite PDF Canvas sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Whiteboard Infinite PDF Canvas holds the better App Store score, 4.9 against 4.3. That said, the two scores are not equally well evidenced: Simple Blackboard has 139 ratings behind it against 19, so its average is the more settled of the two.

Simple Blackboard ships an update every 9 months, Whiteboard Infinite PDF Canvas every 11 days. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Simple Blackboard | Whiteboard Infinite PDF Canvas |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (139 ratings)](https://appshunter.io/ios/app/simple-blackboard/id1436764683/reviews) | **[4.9 (19 ratings)](https://appshunter.io/ios/app/whiteboard-infinite-pdf-canvas/id6475992095/reviews)** |
| Number of ratings | **139** | 19 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 9 months | **Every 11 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 4 MB | 381 MB |
| Requires iOS | **15.6** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Bita Sobhani](https://appshunter.io/developer/1372721132) | [Kairoos Solutions SL](https://appshunter.io/developer/978066434) |

## What reviewers say

### Simple Blackboard

[App page](https://appshunter.io/ios/app/simple-blackboard/id1436764683)

This app provides a digital canvas for drawing, sketching, and note-taking. It offers various tools like brushes, colors, shapes, and text, with options to load photos and record your creative process. Save your work, manage pages, and keep your last drawing accessible.

**Highlights:** Blackboard or whiteboard selection, Adjustable brush sizes and colors, Drawing of various shapes, Text typing with adjustable font size, Load photos onto the board, Record video of drawing process, Save drawings and manage pages

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $2.99 | one-time |


### Whiteboard Infinite PDF Canvas

[App page](https://appshunter.io/ios/app/whiteboard-infinite-pdf-canvas/id6475992095)

This app provides an expansive digital canvas for sketching, diagramming, and note-taking. Seamlessly integrate text, images, and even live websites to connect your ideas. Export your creations as PDFs or present them directly from your device.

**Highlights:** Infinite canvas, Drawing and writing tools, Sticky notes and tables, Diagram connectors, PDF import and markup, Audio recording and transcription, AI Assistant

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Features and AI | $3.99 | per month |
| Whiteboard Annual | $14.99 | per year |
| Full Pro Unlock | $14.99 | one-time |


## Frequently asked questions

### Is Simple Blackboard free?

Simple Blackboard is free to download, with in-app purchases available.

### Is Whiteboard Infinite PDF Canvas free?

Whiteboard Infinite PDF Canvas is free to download, with in-app purchases available.

### Which has better reviews, Simple Blackboard or Whiteboard Infinite PDF Canvas?

Whiteboard Infinite PDF Canvas is rated higher. Simple Blackboard averages 4.3 out of 5 from 139 ratings, while Whiteboard Infinite PDF Canvas averages 4.9 from 19 ratings.

### Do Simple Blackboard or Whiteboard Infinite PDF Canvas have ads?

Simple Blackboard shows ads; Whiteboard Infinite PDF Canvas does not.

### Which is updated more often, Simple Blackboard or Whiteboard Infinite PDF Canvas?

Simple Blackboard ships an update every 9 months, and Whiteboard Infinite PDF Canvas every 11 days. Most recently, Simple Blackboard was updated on November 2, 2026 and Whiteboard Infinite PDF Canvas on November 4, 2026.

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