# 音标与发音 vs 4000基础必备英语单词3

The clearest difference is price: 音标与发音 at Free against 4000基础必备英语单词3's $0.99. 音标与发音 also leads on iOS requirement (13.0 vs 15.0). 4000基础必备英语单词3's advantage is in-app purchases (none vs 2). On update cadence, ads and device support there is nothing between them.

音标与发音 is free to download; 4000基础必备英语单词3 costs $0.99 up front. 音标与发音 sells 2 one-off in-app purchases. 4000基础必备英语单词3 asks for nothing beyond the download.

音标与发音 ships an update every 3 months, 4000基础必备英语单词3 every 2 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | 音标与发音 | 4000基础必备英语单词3 |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.7 (29 ratings)](https://appshunter.io/ios/app/id1523048926/reviews)** | — |
| Number of ratings | **29** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Size | 255 MB | 172 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [继岩 孙](https://appshunter.io/developer/1522997935) | [水生 王](https://appshunter.io/developer/1587470458) |

## What reviewers say

### 音标与发音

[App page](https://appshunter.io/ios/app/id1523048926)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 购买1200钥匙 | $0.99 | one-time |
| 资助12元 | $1.99 | one-time |


### 4000基础必备英语单词3

[App page](https://appshunter.io/ios/app/40003/id1640443262)

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

**In-app purchases:** none


## Frequently asked questions

### Is 音标与发音 free?

音标与发音 is free to download, with in-app purchases available.

### Is 4000基础必备英语单词3 free?

4000基础必备英语单词3 costs $0.99, with no in-app purchases.

### Do 音标与发音 or 4000基础必备英语单词3 have ads?

Neither 音标与发音 nor 4000基础必备英语单词3 shows ads.

### Which is updated more often, 音标与发音 or 4000基础必备英语单词3?

音标与发音 ships an update every 3 months, and 4000基础必备英语单词3 every 2 months. Most recently, 音标与发音 was updated on November 3, 2026 and 4000基础必备英语单词3 on November 3, 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.*