# 통통통(학부모용) vs DYB Window

The clearest difference is review sentiment: DYB Window at 49% against 통통통(학부모용)'s 18%. 통통통(학부모용)'s advantage is iOS requirement (13.0 vs 16.6). 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.

통통통(학부모용) ships an update every 4 weeks, DYB Window fortnightly. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | 통통통(학부모용) | DYB Window |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.1 (20 ratings)](https://appshunter.io/ios/app/dyb-window/id6473522970/reviews)** |
| Number of ratings | — | **20** |
| Positive reviews | 18.0% of reviews | **49.2% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Fortnightly** |
| Monetization | Free | Free |
| Size | 30 MB | 57 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Edu Bay Syeon Co., Ltd.](https://appshunter.io/developer/584310798) | [Edu Brain Co. Ltd](https://appshunter.io/developer/1719087208) |

## What reviewers say

### 통통통(학부모용)

[App page](https://appshunter.io/ios/app/id688158824)

Easily track your child's academy attendance, assignments, and notifications. Automatically receive daily school schedules and meal plans by entering your child's school, grade, and class information.

**Highlights:** Academy attendance tracking, Academy assignment monitoring, Academy notification alerts, Automatic school timetable, Automatic school meal plans, Access to school information

**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 통통통(학부모용) free?

통통통(학부모용) is free to download, with no in-app purchases.

### Is DYB Window free?

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

### Do 통통통(학부모용) or DYB Window have ads?

Neither 통통통(학부모용) nor DYB Window shows ads.

### Which is updated more often, 통통통(학부모용) or DYB Window?

통통통(학부모용) ships an update every 4 weeks, and DYB Window fortnightly. Most recently, 통통통(학부모용) was updated on November 1, 2026 and DYB Window on November 4, 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.*