# WordTower vs CatFlashcards

The clearest difference is in-app purchases: CatFlashcards at none against WordTower's 2. CatFlashcards also leads on iOS requirement (13.0 vs 16.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. WordTower sells 2 one-off in-app purchases. CatFlashcards asks for nothing beyond the download.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | WordTower | CatFlashcards |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/wordtower/id6478051012/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Monetization | Free with in-app purchases | — |
| Size | 24 MB | 31 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [Hainan Zhuoxin Business Consulting Co., Ltd.](https://appshunter.io/developer/1731484030) | [SEISHUN OKAMI](https://appshunter.io/developer/1863842496) |

## What reviewers say

### WordTower

[App page](https://appshunter.io/ios/app/wordtower/id6478051012)

This app transforms EPUB books with audio into structured listening and reading courses. It intelligently analyzes text, identifies vocabulary, and offers a phased learning approach from previewing to review. Users can customize their learning pace by breaking down content into manageable sections.

**Highlights:** Import EPUB books and audio, Smart text analysis and highlighting, Phased learning: preview, read, review, Content broken down by book, chapter, page, Vocabulary, listening, and reading practice

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 提前支持 | $12.99 | one-time |
| 首批永久会员 | $99.99 | one-time |


### CatFlashcards

[App page](https://appshunter.io/ios/app/catflashcards/id6756944214)

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

**In-app purchases:** none


## Frequently asked questions

### Is WordTower free?

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

### Is CatFlashcards free?

CatFlashcards is free to download, with no in-app purchases.

### Do WordTower or CatFlashcards have ads?

Neither WordTower nor CatFlashcards shows ads.

### Which is updated more often, WordTower or CatFlashcards?

WordTower ships an update weekly, and CatFlashcards weekly. Most recently, WordTower was updated on October 9, 2026 and CatFlashcards on October 7, 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.*