# 강의하는아이들 vs April Buff

The clearest difference is review sentiment: April Buff at 72% against 강의하는아이들's 24%. April Buff also leads on iOS requirement (12.0 vs 15.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

강의하는아이들 ships an update every 2 months, April Buff every 5 weeks. The most recent releases landed on October 16, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | 강의하는아이들 | April Buff |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (7 ratings)](https://appshunter.io/ios/app/april-buff/id1498580532/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | 24.0% of reviews | **72.4% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | — | Free |
| Size | 14 MB | 208 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Otwoline](https://appshunter.io/developer/422568234) | [CREVERSE, Inc.](https://appshunter.io/developer/739652504) |

## What reviewers say

### 강의하는아이들

[App page](https://appshunter.io/ios/app/id852898959)

**Features:** Vision Pro support

**In-app purchases:** none


### April Buff

[App page](https://appshunter.io/ios/app/april-buff/id1498580532)

This app uses augmented reality to make learning English vocabulary fun for elementary students. It offers interactive games, quizzes, and progress tracking linked to a specific curriculum. Users can collect word cards and compete nationally.

**Highlights:** AR-based vocabulary study, Interactive games and quizzes, Collect word and chunk cards, National ranking system, Scan textbook to start games, Linked to Learning Portal

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 강의하는아이들 free?

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

### Is April Buff free?

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

### Do 강의하는아이들 or April Buff have ads?

Neither 강의하는아이들 nor April Buff shows ads.

### Which is updated more often, 강의하는아이들 or April Buff?

강의하는아이들 ships an update every 2 months, and April Buff every 5 weeks. Most recently, 강의하는아이들 was updated on October 16, 2026 and April Buff on October 15, 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.*