# 文法從0開始 vs 單字腦中瘋

The clearest difference is in-app purchases: 單字腦中瘋 at none against 文法從0開始's 1. 文法從0開始's advantage is ads (none vs shown) and iOS requirement (11.0 vs 13.0). On price, update cadence and device support there is nothing between them.

Both are free to download. 文法從0開始 sells 1 one-off in-app purchase. 單字腦中瘋 asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 6 weeks. The most recent releases landed on June 9, 2026 and March 20, 2026 respectively.

## The numbers

| Metric | 文法從0開始 | 單字腦中瘋 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (6 ratings)](https://appshunter.io/ios/app/0/id1330454546/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 85.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | Every 6 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 38 MB | 32 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [JIAN-XIN JIANG](https://appshunter.io/developer/1209048640) | [空中美語](https://appshunter.io/developer/1373172419) |

## What reviewers say

### 文法從0開始

[App page](https://appshunter.io/ios/app/0/id1330454546)

This app offers a beginner-friendly approach to learning English grammar. It focuses on building simple sentence structures first, gradually introducing complexity. The content is written in a conversational style to make learning clear and confidence-building.

**Highlights:** Beginner-friendly grammar, Focus on sentence structure, Conversational language, Gradual complexity introduction, Clear explanations, Confidence building

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 英文文法從0開始-完整版 | $14.99 | one-time |


### 單字腦中瘋

[App page](https://appshunter.io/ios/app/id1524436119)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 文法從0開始 free?

文法從0開始 is free to download, with in-app purchases available.

### Is 單字腦中瘋 free?

單字腦中瘋 is free to download, with no in-app purchases.

### Do 文法從0開始 or 單字腦中瘋 have ads?

單字腦中瘋 shows ads; 文法從0開始 does not.

### Which is updated more often, 文法從0開始 or 單字腦中瘋?

文法從0開始 ships an update every 6 weeks, and 單字腦中瘋 every 6 weeks. Most recently, 文法從0開始 was updated on June 9, 2026 and 單字腦中瘋 on March 20, 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.*