# 希平方 玩轉文法 vs ChemBench

The clearest difference is update cadence: ChemBench at every 6 days against 希平方 玩轉文法's every 3 weeks. 希平方 玩轉文法's advantage is iOS requirement (9.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 希平方 玩轉文法 sells 1 one-off in-app purchase and ChemBench sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

希平方 玩轉文法 ships an update every 3 weeks, ChemBench every 6 days. The most recent releases landed on October 26, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | 希平方 玩轉文法 | ChemBench |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 6 days** |
| Size | 28 MB | 9 MB |
| Requires iOS | **9.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [希平方科技股份有限公司](https://appshunter.io/developer/1065709292) | [献慧 陈](https://appshunter.io/developer/1896370005) |

## What reviewers say

### 希平方 玩轉文法

[App page](https://appshunter.io/ios/app/id1448674502)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 玩轉文法 | $499.99 | one-time |


### ChemBench

[App page](https://appshunter.io/ios/app/chembench-equation-balancer/id6813808389)

**Features:** macOS Compatibility, Family Sharing, Vision Pro support, iPhone Duo support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Intro Answers | $0.99 | one-time |
| Core Answers | $1.99 | one-time |
| Brainer Answers | $2.99 | one-time |
| Pro Lifetime | $4.99 | one-time |


## Frequently asked questions

### Is 希平方 玩轉文法 free?

希平方 玩轉文法 is free to download, with in-app purchases available.

### Is ChemBench free?

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

### Do 希平方 玩轉文法 or ChemBench have ads?

Neither 希平方 玩轉文法 nor ChemBench shows ads.

### Which is updated more often, 希平方 玩轉文法 or ChemBench?

希平方 玩轉文法 ships an update every 3 weeks, and ChemBench every 6 days. Most recently, 希平方 玩轉文法 was updated on October 26, 2026 and ChemBench on November 6, 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.*