# 随手画画板 vs 共墨：多人实时协作白板

The clearest difference is in-app purchases: 随手画画板 at none against 共墨：多人实时协作白板's 2. 随手画画板 also leads on update cadence (daily vs every 2 days). 共墨：多人实时协作白板's advantage is ads (none vs shown) and iOS requirement (13.0 vs 15.6). On price and device support there is nothing between them.

Both are free to download. 共墨：多人实时协作白板 sells 2 in-app purchases, starting at $1.99 per month. 随手画画板 asks for nothing beyond the download.

随手画画板 ships an update daily, 共墨：多人实时协作白板 every 2 days. The most recent releases landed on October 18, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 随手画画板 | 共墨：多人实时协作白板 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Daily** | Every 2 days |
| Size | 15 MB | 25 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Shenzhen Duoxiang Technology Co., Ltd](https://appshunter.io/developer/1534573413) | [林 周](https://appshunter.io/developer/6791439340) |

## What reviewers say

### 随手画画板

[App page](https://appshunter.io/ios/app/id6743754582)

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

**In-app purchases:** none


### 共墨：多人实时协作白板

[App page](https://appshunter.io/ios/app/id6794896525)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| InkTwine Pro Monthly | $1.99 | per month |
| InkTwine Pro Yearly | $14.99 | per year |


## Frequently asked questions

### Is 随手画画板 free?

随手画画板 is free to download, with no in-app purchases.

### Is 共墨：多人实时协作白板 free?

共墨：多人实时协作白板 is free to download, with in-app purchases available.

### Do 随手画画板 or 共墨：多人实时协作白板 have ads?

随手画画板 shows ads; 共墨：多人实时协作白板 does not.

### Which is updated more often, 随手画画板 or 共墨：多人实时协作白板?

随手画画板 ships an update daily, and 共墨：多人实时协作白板 every 2 days. Most recently, 随手画画板 was updated on October 18, 2026 and 共墨：多人实时协作白板 on October 25, 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.*