# 短信狗卫士 vs 单词GO

The clearest difference is price: 单词GO at Free against 短信狗卫士's $0.99. 短信狗卫士's advantage is in-app purchases (none vs 3) and update cadence (every 5 days vs every 2 weeks). On rating, ratings volume, ads and device support there is nothing between them.

单词GO is free to download; 短信狗卫士 costs $0.99 up front. 单词GO sells 3 in-app purchases, starting at $2.99 per month. 短信狗卫士 asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for 短信狗卫士 against 5.0 for 单词GO. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

短信狗卫士 ships an update every 5 days, 单词GO every 2 weeks. The most recent releases landed on September 28, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | 短信狗卫士 | 单词GO |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/id6447949251/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/go/id6449257530/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 2 weeks |
| Monetization | — | Freemium |
| Size | 9 MB | 14 MB |
| Requires iOS | **14.0** | 18.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [珍珍 张](https://appshunter.io/developer/1607946529) | [涛 钱](https://appshunter.io/developer/1688392957) |

## What reviewers say

### 短信狗卫士

[App page](https://appshunter.io/ios/app/id6447949251)

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

**In-app purchases:** none


### 单词GO

[App page](https://appshunter.io/ios/app/go/id6449257530)

This app helps you learn new vocabulary by recording words and their context. It uses spaced repetition to aid memorization and provides definitions based on specific usage scenarios.

**Highlights:** Record new words and context, Context-specific definitions, Spaced repetition learning, Vocabulary memorization aid, Track word learning progress

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| Annual | $9.99 | per year |
| Lifetime Plus Member | $19.99 | one-time |


## Frequently asked questions

### Is 短信狗卫士 free?

短信狗卫士 costs $0.99, with no in-app purchases.

### Is 单词GO free?

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

### Which has better reviews, 短信狗卫士 or 单词GO?

短信狗卫士 and 单词GO are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do 短信狗卫士 or 单词GO have ads?

Neither 短信狗卫士 nor 单词GO shows ads.

### Which is updated more often, 短信狗卫士 or 单词GO?

短信狗卫士 ships an update every 5 days, and 单词GO every 2 weeks. Most recently, 短信狗卫士 was updated on September 28, 2026 and 单词GO on October 8, 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.*