# Blackboard vs poly

The clearest difference is in-app purchases: Blackboard at none against poly's 1. poly's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. poly sells 1 one-off in-app purchase. Blackboard asks for nothing beyond the download.

Blackboard ships an update every 2 months, poly every 3 months. The most recent releases landed on September 23, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Blackboard | poly |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (14 ratings)](https://appshunter.io/ios/app/blackboard-simple/id1600026235/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | 16.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Ad-supported | — |
| Size | 13 MB | 74 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ryouhei Azuma](https://appshunter.io/developer/1353297781) | [TATSUO NAKANO](https://appshunter.io/developer/1846200191) |

## What reviewers say

### Blackboard

[App page](https://appshunter.io/ios/app/blackboard-simple/id1600026235)

This drawing app mimics a physical blackboard, allowing users to sketch and write with white and red pens. It supports multi-touch for collaborative drawing and enables saving creations as images. Use it as a digital notepad or for artistic expression.

**Highlights:** Blackboard simulation, White and red pen tools, Multi-touch drawing, Save drawings as images, Digital notepad functionality

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

**In-app purchases:** none


### poly

[App page](https://appshunter.io/ios/app/poly-morph-timer/id6765544218)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |


## Frequently asked questions

### Is Blackboard free?

Blackboard is free to download, with no in-app purchases.

### Is poly free?

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

### Do Blackboard or poly have ads?

Blackboard shows ads; poly does not.

### Which is updated more often, Blackboard or poly?

Blackboard ships an update every 2 months, and poly every 3 months. Most recently, Blackboard was updated on September 23, 2026 and poly on September 20, 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.*