# AI Debate Master vs 百词单词出题器

The clearest difference is in-app purchases: 百词单词出题器 at none against AI Debate Master's 3. 百词单词出题器 also leads on update cadence (every 3 days vs weekly) and iOS requirement (15.0 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. AI Debate Master sells 3 in-app purchases, starting at $1.99 per month. 百词单词出题器 asks for nothing beyond the download.

AI Debate Master ships an update weekly, 百词单词出题器 every 3 days. The most recent releases landed on November 5, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | AI Debate Master | 百词单词出题器 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | **Every 3 days** |
| Size | 6 MB | 12 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [海威 张](https://appshunter.io/developer/1808689507) | [念 刘](https://appshunter.io/developer/6801171169) |

## What reviewers say

### AI Debate Master

[App page](https://appshunter.io/ios/app/ai-debate-master/id6744669316)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 基础版订阅 | $1.99 | per month |
| 标准版订阅 | $4.99 | per month |
| 高级版订阅 | $14.99 | per month |


### 百词单词出题器

[App page](https://appshunter.io/ios/app/id6821853007)

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

**In-app purchases:** none


## Frequently asked questions

### Is AI Debate Master free?

AI Debate Master is free to download, with in-app purchases available.

### Is 百词单词出题器 free?

百词单词出题器 is free to download, with no in-app purchases.

### Do AI Debate Master or 百词单词出题器 have ads?

Neither AI Debate Master nor 百词单词出题器 shows ads.

### Which is updated more often, AI Debate Master or 百词单词出题器?

AI Debate Master ships an update weekly, and 百词单词出题器 every 3 days. Most recently, AI Debate Master was updated on November 5, 2026 and 百词单词出题器 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.*