# 학원친구 vs DYB Window

The clearest difference is rating: DYB Window at 3.3 against 학원친구's 2.0. DYB Window also leads on ads (none vs shown) and review sentiment (49% vs 24%). On price, ratings volume, 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.

DYB Window holds the better App Store score, 3.3 against 2.0. Both are backed by a comparable volume of ratings — 7 and 20 respectively. Written reviews point the same way: 24% of 학원친구's written reviews are positive against 49% of DYB Window's.

학원친구 ships an update every 5 weeks, DYB Window fortnightly. Both last shipped on October 18, 2026.

## The numbers

| Metric | 학원친구 | DYB Window |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (7 ratings)](https://appshunter.io/ios/app/id1123529010/reviews) | **[3.3 (20 ratings)](https://appshunter.io/ios/app/dyb-window/id6473522970/reviews)** |
| Number of ratings | 7 | **20** |
| Positive reviews | 23.6% of reviews | **49.2% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Fortnightly** |
| Monetization | — | Free |
| Size | 17 MB | 57 MB |
| Requires iOS | **15.6** | 16.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [(주)세계로시스템](https://appshunter.io/developer/1123529009) | [Edu Brain Co. Ltd](https://appshunter.io/developer/1719087208) |

## What reviewers say

### 학원친구

[App page](https://appshunter.io/ios/app/id1123529010)

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

**In-app purchases:** none


### DYB Window

[App page](https://appshunter.io/ios/app/dyb-window/id6473522970)

This app allows students to submit homework and tests, receive individual feedback, and track their learning progress. It builds a unique history of academic achievements for comprehensive performance management.

**Highlights:** Submit homework and tests, Receive individual feedback, Track learning progress, View class schedules, Check shuttle bus information, Manage retakes and supplementary lessons

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 학원친구 free?

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

### Is DYB Window free?

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

### Which has better reviews, 학원친구 or DYB Window?

DYB Window is rated higher. 학원친구 averages 2.0 out of 5 from 7 ratings, while DYB Window averages 3.3 from 20 ratings.

### Do 학원친구 or DYB Window have ads?

학원친구 shows ads; DYB Window does not.

### Which is updated more often, 학원친구 or DYB Window?

학원친구 ships an update every 5 weeks, and DYB Window fortnightly. Most recently, 학원친구 was updated on October 18, 2026 and DYB Window on October 18, 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.*