# 랭콘아일랜드 4.0 vs Buff

The clearest difference is rating: Buff at 3.5 against 랭콘아일랜드 4.0's 1.0. Buff also leads on review sentiment (43% vs 35%) and ratings volume (4 vs 1). 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.

Buff holds the better App Store score, 3.5 against 1.0. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews point the same way: 35% of 랭콘아일랜드 4.0's written reviews are positive against 43% of Buff's.

랭콘아일랜드 4.0 ships an update monthly, Buff every 3 weeks. The most recent releases landed on October 15, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | 랭콘아일랜드 4.0 | Buff |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/40/id1441389361/reviews) | **[3.5 (4 ratings)](https://appshunter.io/ios/app/buff-word-power/id6739328232/reviews)** |
| Number of ratings | 1 | **4** |
| Positive reviews | 34.8% of reviews | **43.5% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 2.4 GB | 228 MB |
| Requires iOS | **12.0** | 13.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Avalon Education](https://appshunter.io/developer/928372728) | [CREVERSE, Inc.](https://appshunter.io/developer/739652504) |

## What reviewers say

### 랭콘아일랜드 4.0

[App page](https://appshunter.io/ios/app/40/id1441389361)

This mobile program is designed for students to naturally learn and reinforce language acquisition through homework, review, and preview exercises linked to academy classes. It offers four difficulty levels for practice, accessible even to non-students.

**Highlights:** Mobile homework assignments, Integrated with academy classes, Language acquisition reinforcement, Homework, preview, and review exercises, Four difficulty levels of practice

**Features:** macOS Compatibility

**In-app purchases:** none


### Buff

[App page](https://appshunter.io/ios/app/buff-word-power/id6739328232)

This app helps students from specific language academies reinforce vocabulary learned through i-Learning/p-Learning and prepare for word tests. Users can review learned words, track their progress, and level up their 'word power' as they memorize more terms.

**Highlights:** Vocabulary training for tests, Review learned words, Track memorization progress, Level up word power, Character customization, Tablet and phone compatible

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

**In-app purchases:** none


## Frequently asked questions

### Is 랭콘아일랜드 4.0 free?

랭콘아일랜드 4.0 is free to download, with no in-app purchases.

### Is Buff free?

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

### Which has better reviews, 랭콘아일랜드 4.0 or Buff?

Buff is rated higher. 랭콘아일랜드 4.0 averages 1.0 out of 5 from 1 ratings, while Buff averages 3.5 from 4 ratings.

### Do 랭콘아일랜드 4.0 or Buff have ads?

Neither 랭콘아일랜드 4.0 nor Buff shows ads.

### Which is updated more often, 랭콘아일랜드 4.0 or Buff?

랭콘아일랜드 4.0 ships an update monthly, and Buff every 3 weeks. Most recently, 랭콘아일랜드 4.0 was updated on October 15, 2026 and Buff on October 17, 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.*