# 背背狸ABC vs 蓝星评测

The clearest difference is in-app purchases: 蓝星评测 at none against 背背狸ABC's 1. 背背狸ABC's advantage is update cadence (every 6 days vs every 5 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. 蓝星评测 asks for nothing beyond the download.

背背狸ABC ships an update every 6 days, 蓝星评测 every 5 weeks. The most recent releases landed on October 13, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 背背狸ABC | 蓝星评测 |
| --- | --- | --- |
| 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 5 weeks |
| Monetization | Free | — |
| Size | 59 MB | 57 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [尧 魏](https://appshunter.io/developer/1658434412) | [BOOKR Reading](https://appshunter.io/developer/1763993123) |

## 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 |


### 蓝星评测

[App page](https://appshunter.io/ios/app/id6779455094)

**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 蓝星评测 free?

蓝星评测 is free to download, with no in-app purchases.

### Do 背背狸ABC or 蓝星评测 have ads?

Neither 背背狸ABC nor 蓝星评测 shows ads.

### Which is updated more often, 背背狸ABC or 蓝星评测?

背背狸ABC ships an update every 6 days, and 蓝星评测 every 5 weeks. Most recently, 背背狸ABC was updated on October 13, 2026 and 蓝星评测 on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*