# 背背狸ABC vs Flagsay

The clearest difference is update cadence: 背背狸ABC at every 6 days against Flagsay's every 3 months. 背背狸ABC also leads on iOS requirement (15.6 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 背背狸ABC sells 1 one-off in-app purchase and Flagsay sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

背背狸ABC ships an update every 6 days, Flagsay every 3 months. The most recent releases landed on October 13, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | 背背狸ABC | Flagsay |
| --- | --- | --- |
| 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** | Every 3 months |
| Monetization | Free | — |
| Size | 59 MB | 18 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [尧 魏](https://appshunter.io/developer/1658434412) | [Shanghai Sunrise Chime Technology Co., Ltd.](https://appshunter.io/developer/1809164286) |

## 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 |


### Flagsay

[App page](https://appshunter.io/ios/app/flagsay-everything-speaks/id6749497690)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CaiQi Talk Pro Monthly Subscription | $2.99 | per month |
| CaiQi Talk Pro Yearly Subscription | $29.99 | per year |


## Frequently asked questions

### Is 背背狸ABC free?

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

### Is Flagsay free?

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

### Do 背背狸ABC or Flagsay have ads?

Neither 背背狸ABC nor Flagsay shows ads.

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

背背狸ABC ships an update every 6 days, and Flagsay every 3 months. Most recently, 背背狸ABC was updated on October 13, 2026 and Flagsay on October 5, 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.*