# トンツー — モールス信号で遊ぶアーケードゲーム

> モールス信号で遊ぶアーケードゲーム (iPhone/iPad app by qwertyu.)

- Source: https://appshunter.io/ios/app/id6761429535 (this page in markdown: same URL + `.md`)
- Developer: [qwertyu](https://appshunter.io/developer/553512070)
- Category: Games, Education
- Price: Free
- Age rating: 4+
- Requires: iOS 13.0 · 30 MB
- Languages: American English
- Released: 2026-04-02
- Data updated: 2026-06-29
- User reviews in markdown: https://appshunter.io/ios/app/id6761429535/reviews.md

## What is トンツー?

TONTSU is an arcade-style casual game where you can learn Morse code while having fun.

Shoot down the letters and numbers falling from the top of the screen by entering Morse code!

How to Play

Tap → Dot
Long press → Dash
Swipe → Quick dash input

Enter the correct Morse code to make the characters disappear! Keep answering correctly to build combos and multiply your score.

Features

Retro 8-bit style graphics with CRT scanline effects
Learn all Morse codes for A–Z and 0–9 step by step
Difficulty increases based on your score, including falling speed and character variety
Real communication terms such as SOS and MAYDAY appear in the game
EXPERT Mode: Test your skills with Morse code hints hidden
Beginner-friendly tutorial included


## Version history (last 5 releases)

### 1.4 — 2026-05-14

- Improved Morse code sound effects with real-time audio synthesis
  - Added OK/Cancel sound effects
  - Added pause feature (pause, resume, and exit to title during gameplay)
  - Added Morse tone waveform selection (Sine / Square / Sawtooth) in Settings
  - Added Morse volume slider in Settings
  - Moved Settings button to title screen with unified design

### 1.3 — 2026-05-12

Fixed an issue where, when multiple instances of the same character appeared on screen, the frontmost character would now be removed first.
Added support for English language environments.

### 1.2 — 2026-05-06

・設定画面で入力確定までの時間を調整できるようにしました

### 1.1 — 2026-04-06

アプリ名を修正しました

### 1.0 — 2026-04-02

No release notes.

## More apps by qwertyu

- [すしポコ](https://appshunter.io/ios/app/id6765698024)

All apps by qwertyu: https://appshunter.io/developer/553512070

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-29.*