# 死神單字 vs Preplo

The clearest difference is in-app purchases: 死神單字 at none against Preplo's 1. 死神單字 also leads on iOS requirement (13.0 vs 15.0). Preplo's advantage is update cadence (every 5 days vs every 2 weeks). On price, ads and device support there is nothing between them.

Both are free to download. Preplo sells 1 one-off in-app purchase. 死神單字 asks for nothing beyond the download.

死神單字 ships an update every 2 weeks, Preplo every 5 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 死神單字 | Preplo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (8 ratings)](https://appshunter.io/ios/app/7000/id1570762449/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 96.1% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 weeks | **Every 5 days** |
| Monetization | Ad-supported | — |
| Size | 121 MB | 40 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 12+ |
| Developer | [MENG CHIA TSAI](https://appshunter.io/developer/642435679) | [YICHIN TENG](https://appshunter.io/developer/6789793162) |

## What reviewers say

### 死神單字

[App page](https://appshunter.io/ios/app/7000/id1570762449)

This app categorizes common vocabulary by level and offers practice modes with English past exam questions. It includes extensive word lists for various exams and continues to add new content.

**Highlights:** Vocabulary categorized by level, Practice modes, English past exam questions, 7000-word database, TOEIC, TOEFL, IELTS vocabulary, GMAT vocabulary

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

**In-app purchases:** none


### Preplo

[App page](https://appshunter.io/ios/app/preplo-disaster-prep-guide/id6805942785)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 移除廣告 | $2.99 | one-time |


## Frequently asked questions

### Is 死神單字 free?

死神單字 is free to download, with no in-app purchases.

### Is Preplo free?

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

### Do 死神單字 or Preplo have ads?

Both 死神單字 and Preplo show ads.

### Which is updated more often, 死神單字 or Preplo?

死神單字 ships an update every 2 weeks, and Preplo every 5 days. Most recently, 死神單字 was updated on November 3, 2026 and Preplo 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.*