# 背背狸ABC vs 火车单词

The clearest difference is device support: 背背狸ABC at 3 against 火车单词's 1. 背背狸ABC also leads on iOS requirement (15.6 vs 17.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. 背背狸ABC sells 1 one-off in-app purchase and 火车单词 sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

背背狸ABC ships an update every 6 days, 火车单词 weekly. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 背背狸ABC | 火车单词 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/abc-momo/id6749012131/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 92.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Weekly |
| Monetization | Free | — |
| Size | 59 MB | 639 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [尧 魏](https://appshunter.io/developer/1658434412) | [颢罡 金](https://appshunter.io/developer/1687426908) |

## What reviewers say

### 背背狸ABC

[App page](https://appshunter.io/ios/app/abc-momo/id6749012131)

This app uses smart algorithms and AI to help you memorize vocabulary efficiently. It personalizes learning difficulty and provides memory aids for better retention. Enjoy a clean interface designed for focused learning.

**Highlights:** Intelligent algorithm for efficient memorization, Personalized learning difficulty adjustment, One-second feedback for better understanding, Scientific spaced repetition, Memory aids like mnemonics and example sentences, Clean and user-friendly interface, Local data processing for privacy

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 毋庸置疑咖啡 | $2.99 | one-time |


### 火车单词

[App page](https://appshunter.io/ios/app/id6762613193)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 吉原车站 | $1.99 | one-time |
| 建设家 | $2.99 | one-time |
| 环形码头车站 | $2.99 | one-time |
| 建设大师升级卡 | $3.99 | one-time |
| 建设大师 | $6.99 | one-time |


## Frequently asked questions

### Is 背背狸ABC free?

背背狸ABC is free to download, with in-app purchases available.

### Is 火车单词 free?

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

### Do 背背狸ABC or 火车单词 have ads?

Neither 背背狸ABC nor 火车单词 shows ads.

### Which is updated more often, 背背狸ABC or 火车单词?

背背狸ABC ships an update every 6 days, and 火车单词 weekly. Most recently, 背背狸ABC was updated on November 5, 2026 and 火车单词 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.*