# Cadenza: Morse Code Trainer — Learn CW by ear, Koch method

> Learn CW by ear, Koch method (iPhone/iPad app by Ivan Terekhin.)

- Source: https://appshunter.io/ios/app/cadenza-morse-code-trainer/id6785429210 (this page in markdown: same URL + `.md`)
- Developer: [Ivan Terekhin](https://appshunter.io/developer/888645337)
- Category: Education, Reference
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16.4 · 68 MB
- Languages: American English
- Released: 2026-07-07
- Data updated: 2026-08-25
- User reviews in markdown: https://appshunter.io/ios/app/cadenza-morse-code-trainer/id6785429210/reviews.md

## What is Cadenza?

Cadenza teaches Morse code the way real operators actually read it: by ear. You start with just two letters at full speed and add more as you go, so you learn the sound and rhythm of each character instead of counting dots and dashes.

Built on the proven Koch method with Farnsworth spacing, Cadenza adapts to you. It notices which characters you confuse, drills the exact pairs you mix up, and raises your speed only when you are ready.

WHAT YOU GET
- Letters trainer: the full alphabet, numbers and punctuation, one character at a time
- Reference: tap any letter, prosign, Q-code or abbreviation to hear it
- Tools: Listen, a decoder that turns clean Morse tones into text through your mic, a text-to-Morse translator (sound, screen light, camera flash, vibration) and an accessible Morse keyboard
- Postcard: turn a short message into a Morse card, drawn as a rhythm score and sent as a picture with a link. Your friend hears it and decodes it in Cadenza
- Progress: streaks, a daily goal, achievements, accuracy heatmaps and a daily challenge that is the same for everyone
- Three channels: hear it, see it (a gentle beacon or an opt-in strobe), feel it through vibration

GO FURTHER WITH PRO
- Copy whole words, random groups and full lines of text
- Your lists: drill your own words, callsigns and contest exchanges; the QSO simulator answers your own callsign
- Head copy with no typing
- Sending practice with an on-screen straight key
- Realistic on-air modes: callsign trainer, QSO simulator and pile-up
- Detailed analytics: confusion matrix and reaction time

WHY CADENZA
No accounts. No ads. No tracking. Everything works offline and your practice stays on your device. Where other trainers make you count or stare at charts, Cadenza keeps you listening.

PERFECT FOR
- Total beginners learning from zero
- Aspiring and licensed ham radio operators preparing for on-air CW
- Anyone who wants a durable, offline skill

Free forever: the full Koch trainer, the reference, the tools, the daily challenge and basic stats. Cadenza Pro unlocks the copy, sending and on-air modes plus advanced analytics with a monthly or yearly subscription, or a one-time lifetime purchase.

Cadenza Pro is offered as a monthly or annual auto-renewing subscription or a one-time lifetime purchase. Subscriptions are billed to your Apple ID and renew automatically unless cancelled at least 24 hours before the period ends. Manage or cancel in your Account Settings.
Privacy Policy: https://trifoiltrailblazer.com/privacy-policy
Terms of Use: https://trifoiltrailblazer.com/terms-of-service

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Cadenza Pro | $24.99 | per year |
| Cadenza Pro | $6.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Cadenza Pro Lifetime | $39.99 | one-time |



## Version history (last 5 releases)

### 1.4.0 — 2026-08-24

New in 1.4.0: Brazilian Portuguese. Cadenza is now fully available in Portuguese across every trainer, tool, stat, and setting. Plus smaller fixes and polish.

### 1.3.0 — 2026-08-07

New in 1.3.0: your lists. Build your own practice lists: callsigns, contest exchanges, the words you keep missing, and copy them by ear like any other drill. Tell Cadenza your callsign, too: the QSO simulator will address its exchanges to you, so you practice copying the station that answers your call. Both part of Cadenza Pro. Cadenza also now waits until you step out of a drill before it asks you anything, so nothing interrupts a character you are copying, and you can rate the app from Settings whenever you feel like it. Plus smaller fixes and polish.

### 1.2.0 — 2026-08-05

New in 1.2.0: the Postcard. Type a short message and Cadenza turns it into a card: the Morse drawn as a rhythm score, played back in sound, light and vibration, and shared as a picture with one link. Your friend hears the rhythm and decodes it in Cadenza. A QR stamp on the card means even a forwarded screenshot opens. Free, like Listen and the trainer. Plus smaller fixes and polish.

### 1.1.0 — 2026-07-19

New in 1.1.0: Listen. Point your phone at a clean Morse signal, another phone, a practice oscillator or a rig, and Cadenza decodes it to text in real time with a live speed readout. It runs entirely on your device: no audio is recorded or sent anywhere. Free, like the rest of the trainer. Plus smaller fixes and polish.

### 1.0.0 — 2026-07-08

No release notes.

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## More apps by Ivan Terekhin

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- [WinGym - Gym Workout Tracker](https://appshunter.io/ios/app/wingym-gym-workout-tracker/id6475193005)
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- [Sober Tracker: Quit Drinking](https://appshunter.io/ios/app/sober-tracker-quit-drinking/id6741011041)

All apps by Ivan Terekhin: https://appshunter.io/developer/888645337

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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 2026-08-25.*