# 單字大師 vs 天球模擬器

The clearest difference is update cadence: 天球模擬器 at every 3 days against 單字大師's every 4 months. 天球模擬器 also leads on iOS requirement (13.0 vs 16.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

單字大師 ships an update every 4 months, 天球模擬器 every 3 days. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 單字大師 | 天球模擬器 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 days** |
| Size | 1 MB | 19 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Hai-Chou Wang](https://appshunter.io/developer/1789103330) | [Han-Chiang Chou](https://appshunter.io/developer/1883578938) |

## What reviewers say

### 單字大師

[App page](https://appshunter.io/ios/app/id6740634646)

**Features:** macOS Compatibility

**In-app purchases:** none


### 天球模擬器

[App page](https://appshunter.io/ios/app/id6760458030)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 單字大師 free?

單字大師 is free to download, with no in-app purchases.

### Is 天球模擬器 free?

天球模擬器 is free to download, with no in-app purchases.

### Do 單字大師 or 天球模擬器 have ads?

Neither 單字大師 nor 天球模擬器 shows ads.

### Which is updated more often, 單字大師 or 天球模擬器?

單字大師 ships an update every 4 months, and 天球模擬器 every 3 days. Most recently, 單字大師 was updated on October 30, 2026 and 天球模擬器 on October 25, 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.*