# 素正堂 vs 心之易

The clearest difference is in-app purchases: 素正堂 at none against 心之易's 6. 心之易'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. 心之易 sells 6 one-off in-app purchases. 素正堂 asks for nothing beyond the download.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 素正堂 | 心之易 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | Monthly |
| Size | 21 MB | 59 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [秋莹 梁](https://appshunter.io/developer/1673920303) | [Beijing Xinzhiyi Technology Co., Ltd](https://appshunter.io/developer/1773729558) |

## What reviewers say

### 素正堂

[App page](https://appshunter.io/ios/app/id6469669429)

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

**In-app purchases:** none


### 心之易

[App page](https://appshunter.io/ios/app/ai/id6737379010)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 总结加油卡 | $0.99 | one-time |
| 评估加油卡 | $0.99 | one-time |
| 提示加油卡 | $2.99 | one-time |
| 基础对练卡 | $5.99 | one-time |
| 对练进阶卡 | $19.99 | one-time |
| 心之易大会员·全年 | $19.99 | one-time |


## Frequently asked questions

### Is 素正堂 free?

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

### Is 心之易 free?

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

### Do 素正堂 or 心之易 have ads?

素正堂 shows ads; 心之易 does not.

### Which is updated more often, 素正堂 or 心之易?

素正堂 ships an update monthly, and 心之易 monthly. Most recently, 素正堂 was updated on October 30, 2026 and 心之易 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.*