# 吉的堡溪湖校 vs 單字雪球

The clearest difference is in-app purchases: 吉的堡溪湖校 at none against 單字雪球's 1. 吉的堡溪湖校 also leads on iOS requirement (15.0 vs 17.0). 單字雪球's advantage is update cadence (every 4 days vs every 29 months). On price, ads and device support there is nothing between them.

Both are free to download. 單字雪球 sells 1 one-off in-app purchase. 吉的堡溪湖校 asks for nothing beyond the download.

吉的堡溪湖校 ships an update every 29 months, 單字雪球 every 4 days. The most recent releases landed on October 27, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | 吉的堡溪湖校 | 單字雪球 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/7000/id6799845340/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 29 months | **Every 4 days** |
| Monetization | — | Free |
| Size | 197 MB | 34 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Chi Hsien Lai](https://appshunter.io/developer/1039759515) | [CHENG-LI CHANG](https://appshunter.io/developer/6799845342) |

## What reviewers say

### 吉的堡溪湖校

[App page](https://appshunter.io/ios/app/id6480171376)

**Features:** macOS Compatibility

**In-app purchases:** none


### 單字雪球

[App page](https://appshunter.io/ios/app/7000/id6799845340)

This app uses spaced repetition to help you master difficult vocabulary. It features a built-in dictionary, multiple learning modes, and progress tracking. Designed for those who already know many words, it focuses on reinforcing what you struggle to remember.

**Highlights:** Spaced Repetition System (SRS), 18,000+ built-in word bank, Four learning modes (read, quiz, spell, sprint), Built-in Cambridge Dictionary, Progress sync via iCloud, No account, ads, or subscriptions

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 記憶線索 | $2.99 | one-time |


## Frequently asked questions

### Is 吉的堡溪湖校 free?

吉的堡溪湖校 is free to download, with no in-app purchases.

### Is 單字雪球 free?

單字雪球 is free to download, with in-app purchases available.

### Do 吉的堡溪湖校 or 單字雪球 have ads?

Neither 吉的堡溪湖校 nor 單字雪球 shows ads.

### Which is updated more often, 吉的堡溪湖校 or 單字雪球?

吉的堡溪湖校 ships an update every 29 months, and 單字雪球 every 4 days. Most recently, 吉的堡溪湖校 was updated on October 27, 2026 and 單字雪球 on October 29, 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.*