# 算马王 vs EinkPin

The clearest difference is in-app purchases: EinkPin at none against 算马王's 1. 算马王's advantage is iOS requirement (11.0 vs 15.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 算马王 sells 1 one-off in-app purchase. EinkPin asks for nothing beyond the download.

算马王 ships an update weekly, EinkPin every 9 days. The most recent releases landed on October 2, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | 算马王 | EinkPin |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 9 days |
| Size | 5 MB | 3 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [林争 付](https://appshunter.io/developer/600790842) | [Beijing Zizai Technology Co.,Ltd.](https://appshunter.io/developer/736738603) |

## What reviewers say

### 算马王

[App page](https://appshunter.io/ios/app/id1602774885)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 旗舰版 | $9.99 | one-time |


### EinkPin

[App page](https://appshunter.io/ios/app/einkpin/id6793908983)

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

**In-app purchases:** none


## Frequently asked questions

### Is 算马王 free?

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

### Is EinkPin free?

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

### Do 算马王 or EinkPin have ads?

Neither 算马王 nor EinkPin shows ads.

### Which is updated more often, 算马王 or EinkPin?

算马王 ships an update weekly, and EinkPin every 9 days. Most recently, 算马王 was updated on October 2, 2026 and EinkPin on October 5, 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.*