# 单词大爆炸 vs Qi账本

The clearest difference is in-app purchases: Qi账本 at none against 单词大爆炸's 2. Qi账本 also leads on update cadence (every 3 days vs weekly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 单词大爆炸 sells 2 in-app purchases, starting at $0.99 per month. Qi账本 asks for nothing beyond the download.

单词大爆炸 ships an update weekly, Qi账本 every 3 days. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 单词大爆炸 | Qi账本 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | **Every 3 days** |
| Size | 23 MB | 32 MB |
| Requires iOS | 16 | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [少华 豆](https://appshunter.io/developer/1670519957) | [shouhui qi](https://appshunter.io/developer/1185710456) |

## What reviewers say

### 单词大爆炸

[App page](https://appshunter.io/ios/app/id6746351916)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月订阅计划 | $0.99 | per month |
| 年度订阅计划 | $6.99 | per year |


### Qi账本

[App page](https://appshunter.io/ios/app/qi/id6783598816)

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

**In-app purchases:** none


## Frequently asked questions

### Is 单词大爆炸 free?

单词大爆炸 is free to download, with in-app purchases available.

### Is Qi账本 free?

Qi账本 is free to download, with no in-app purchases.

### Do 单词大爆炸 or Qi账本 have ads?

Neither 单词大爆炸 nor Qi账本 shows ads.

### Which is updated more often, 单词大爆炸 or Qi账本?

单词大爆炸 ships an update weekly, and Qi账本 every 3 days. Most recently, 单词大爆炸 was updated on November 7, 2026 and Qi账本 on October 31, 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.*