# 背背狸ABC vs TodoGatya

The clearest difference is in-app purchases: TodoGatya at none against 背背狸ABC's 1. 背背狸ABC's advantage is update cadence (every 6 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 背背狸ABC sells 1 one-off in-app purchase. TodoGatya asks for nothing beyond the download.

背背狸ABC ships an update every 6 days, TodoGatya every 2 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 背背狸ABC | TodoGatya |
| --- | --- | --- |
| 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 | **No** |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 2 weeks |
| Monetization | Free | — |
| Size | 59 MB | 32 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [尧 魏](https://appshunter.io/developer/1658434412) | [Tatsuro Saito](https://appshunter.io/developer/1541469434) |

## 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 |


### TodoGatya

[App page](https://appshunter.io/ios/app/todogatya/id6761904343)

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

**In-app purchases:** none


## Frequently asked questions

### Is 背背狸ABC free?

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

### Is TodoGatya free?

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

### Do 背背狸ABC or TodoGatya have ads?

Neither 背背狸ABC nor TodoGatya shows ads.

### Which is updated more often, 背背狸ABC or TodoGatya?

背背狸ABC ships an update every 6 days, and TodoGatya every 2 weeks. Most recently, 背背狸ABC was updated on October 30, 2026 and TodoGatya 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.*