# SDG社創銀河 vs Whiteboardy

The clearest difference is in-app purchases: SDG社創銀河 at none against Whiteboardy's 3. SDG社創銀河 also leads on device support (3 vs 1) and iOS requirement (12 vs 18.0). Whiteboardy's advantage is update cadence (every 8 days vs every 31 months). On price and ads there is nothing between them.

Both are free to download. Whiteboardy sells 3 one-off in-app purchases. SDG社創銀河 asks for nothing beyond the download.

SDG社創銀河 ships an update every 31 months, Whiteboardy every 8 days. The most recent releases landed on October 2, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | SDG社創銀河 | Whiteboardy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 31 months | **Every 8 days** |
| Size | 123 MB | 4 MB |
| Requires iOS | **12** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Chi Hsien Lai](https://appshunter.io/developer/1039759515) | [Po Jen Ko](https://appshunter.io/developer/6786138005) |

## What reviewers say

### SDG社創銀河

[App page](https://appshunter.io/ios/app/sdg/id1660878495)

**Features:** macOS Compatibility

**In-app purchases:** none


### Whiteboardy

[App page](https://appshunter.io/ios/app/whiteboardy/id6795752114)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 15 Extra Judgments | $1.99 | one-time |
| 35 Extra Judgments | $2.99 | one-time |
| 65 Extra Judgments | $4.99 | one-time |


## Frequently asked questions

### Is SDG社創銀河 free?

SDG社創銀河 is free to download, with no in-app purchases.

### Is Whiteboardy free?

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

### Do SDG社創銀河 or Whiteboardy have ads?

Neither SDG社創銀河 nor Whiteboardy shows ads.

### Which is updated more often, SDG社創銀河 or Whiteboardy?

SDG社創銀河 ships an update every 31 months, and Whiteboardy every 8 days. Most recently, SDG社創銀河 was updated on October 2, 2026 and Whiteboardy on October 10, 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.*