# 象棋助手 vs COMath Premium

The clearest difference is price: 象棋助手 at Free against COMath Premium's $0.99. COMath Premium's advantage is in-app purchases (none vs 10). On update cadence, ads, device support and iOS requirement there is nothing between them.

象棋助手 is free to download; COMath Premium costs $0.99 up front. 象棋助手 sells 10 one-off in-app purchases. COMath Premium asks for nothing beyond the download.

象棋助手 ships an update every 3 weeks, COMath Premium every 2 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 象棋助手 | COMath Premium |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/ai/id6443748058/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 296 MB | 85 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [候军 袁](https://appshunter.io/developer/1649023261) | [Jianfeng Wu](https://appshunter.io/developer/1435210283) |

## What reviewers say

### 象棋助手

[App page](https://appshunter.io/ios/app/ai/id6443748058)

This app helps Chinese chess enthusiasts analyze games, study openings and endgames, and organize personal game records. It offers features like screen reading analysis, photo recognition of game boards, and AI-powered engine analysis for deeper understanding and training.

**Highlights:** AI screen reading analysis of live games, Photo recognition to digitize game boards, Built-in AI engine for game analysis, Blindfold chess training mode, Voice input for recording moves, Comprehensive game record management, Cloud synchronization across devices

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 象棋助手订阅（一个月） | $0.99 | one-time |
| 老用户半价订阅（一个月） | $0.99 | one-time |
| 老用户半价订阅（三个月） | $0.99 | one-time |
| 象棋助手订阅（三个月） | $1.99 | one-time |
| 老用户半价订阅（六个月） | $1.99 | one-time |
| 老用户半价订阅（一年） | $2.99 | one-time |
| 象棋助手订阅（六个月） | $3.99 | one-time |
| 象棋助手订阅（三个月） | $4.99 | one-time |
| 象棋助手订阅（一年） | $5.99 | one-time |
| 象棋助手（终身会员） | $29.99 | one-time |


### COMath Premium

[App page](https://appshunter.io/ios/app/comath-premium/id6752225245)

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

**In-app purchases:** none


## Frequently asked questions

### Is 象棋助手 free?

象棋助手 is free to download, with in-app purchases available.

### Is COMath Premium free?

COMath Premium costs $0.99, with no in-app purchases.

### Do 象棋助手 or COMath Premium have ads?

Neither 象棋助手 nor COMath Premium shows ads.

### Which is updated more often, 象棋助手 or COMath Premium?

象棋助手 ships an update every 3 weeks, and COMath Premium every 2 weeks. Most recently, 象棋助手 was updated on October 24, 2026 and COMath Premium 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.*