# Morse Code Trainer - CW Key — Koch method CW copy & keying

> Koch method CW copy & keying (iPhone/iPad app by TAKUYA KONO.)

- Source: https://appshunter.io/ios/app/morse-code-trainer-cw-key/id6790239718 (this page in markdown: same URL + `.md`)
- Developer: [TAKUYA KONO](https://appshunter.io/developer/1884296172)
- Category: Education
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 1 MB
- Languages: American English, Japanese
- Released: 2026-07-14
- Data updated: 2026-07-25
- User reviews in markdown: https://appshunter.io/ios/app/morse-code-trainer-cw-key/id6790239718/reviews.md

## What is Morse Code Trainer?

Every inch of the screen is your straight key.
Press anywhere to send — it lights up and plays a sidetone.

RECEIVE — the Koch method with Farnsworth timing. Start with two characters at real-world speed (15-25 WPM) and unlock the next at 90% accuracy, through 40 levels. The answer pad shows only the characters you have learned, so there is nothing to second-guess.

SEND — real-time decoding with automatic dit/dah calibration. Watch yourself descend the Morse code tree with every keypress: hold for left, tap for right, with dot and dash waypoints always showing where the next press leads. Targets grow from single letters to common CW abbreviations and callsigns.

CHART — the full alphabet, numbers and punctuation. Tap any row to hear it at your configured speed and tone.

SETTINGS — character speed 15-25 WPM, effective (Farnsworth) speed 5-15 WPM, sidetone 400-1000 Hz, key haptics. Volume follows the silent switch.

PRICING — all training features are free, with no ads. A one-time Pro (Supporter Pack) purchase adds alternate app icons, theme colors and a 30-day progress chart.

Everything stays on your device — no account, no tracking, fully offline.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Pro (Supporter Pack) | $3.99 | one-time |



## Version history (last 2 releases)

### 1.1.0 — 2026-07-20

Added a new diagram mode to the Send screen.

- PCB Wiring mode: a fixed circuit-style diagram based on a classic Morse practice card
- The original Tree diagram mode is still one tap away

Switch anytime from the button in the top-right of the panel.

### 1.0 — 2026-07-14

No release notes.

## More apps by TAKUYA KONO

- [NoTodo - Quit Phone Addiction](https://appshunter.io/ios/app/notodo-quit-phone-addiction/id6760402485)
- [tumori](https://appshunter.io/ios/app/tumori/id6790603784)

All apps by TAKUYA KONO: https://appshunter.io/developer/1884296172

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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 2026-07-25.*