# April Buff vs 관악구통합도서관

The clearest difference is review sentiment: April Buff at 72% against 관악구통합도서관's 33%. April Buff also leads on iOS requirement (12.0 vs 15.0). 관악구통합도서관's advantage is update cadence (every 10 days vs every 5 weeks). On price, ads, in-app purchases and device support there is nothing between them.

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

April Buff ships an update every 5 weeks, 관악구통합도서관 every 10 days. The most recent releases landed on November 3, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | April Buff | 관악구통합도서관 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (7 ratings)](https://appshunter.io/ios/app/april-buff/id1498580532/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | **72.4% of reviews** | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 10 days** |
| Monetization | Free | — |
| Size | 208 MB | 126 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CREVERSE, Inc.](https://appshunter.io/developer/739652504) | [jnet co.,ltd](https://appshunter.io/developer/492869401) |

## What reviewers say

### 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


### 관악구통합도서관

[App page](https://appshunter.io/ios/app/id6752884340)

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

**In-app purchases:** none


## Frequently asked questions

### Is April Buff free?

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

### Is 관악구통합도서관 free?

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

### Do April Buff or 관악구통합도서관 have ads?

Neither April Buff nor 관악구통합도서관 shows ads.

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

April Buff ships an update every 5 weeks, and 관악구통합도서관 every 10 days. Most recently, April Buff was updated on November 3, 2026 and 관악구통합도서관 on November 8, 2026.

---

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