# 통통통 pro vs HB OTP

The clearest difference is iOS requirement: 통통통 pro at 13.0 against HB OTP's 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.

통통통 pro ships an update every 3 weeks, HB OTP every 5 weeks. The most recent releases landed on October 16, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | 통통통 pro | HB OTP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/pro/id1251769498/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | Free | — |
| Size | 19 MB | 8 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Edu Bay Syeon Co., Ltd.](https://appshunter.io/developer/584310798) | [(주)해법에듀](https://appshunter.io/developer/1091818260) |

## What reviewers say

### 통통통 pro

[App page](https://appshunter.io/ios/app/pro/id1251769498)

This app streamlines academy management with features for student registration, attendance tracking, academic performance monitoring, and administrative tasks. It facilitates seamless communication with students and parents, and offers integrated payment solutions.

**Highlights:** Student registration and attendance tracking, Academic performance and online learning management, Financial management (payments, refunds), Administrative task automation (daily logs, e-approvals), Student and parent communication tools, Integrated payment gateway options

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

**In-app purchases:** none


### HB OTP

[App page](https://appshunter.io/ios/app/hb-otp/id6450350991)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 통통통 pro free?

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

### Is HB OTP free?

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

### Do 통통통 pro or HB OTP have ads?

Neither 통통통 pro nor HB OTP shows ads.

### Which is updated more often, 통통통 pro or HB OTP?

통통통 pro ships an update every 3 weeks, and HB OTP every 5 weeks. Most recently, 통통통 pro was updated on October 16, 2026 and HB OTP on October 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.*