# RhythmMorse: Learn Morse Code — The Koch Method, Made Fun

> The Koch Method, Made Fun (iPhone/iPad app by REVOT, K.K..)

- Source: https://appshunter.io/ios/app/rhythmmorse-learn-morse-code/id6792425879 (this page in markdown: same URL + `.md`)
- Developer: [REVOT, K.K.](https://appshunter.io/developer/1257719756)
- Category: Education, Games
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 3 MB
- Languages: American English, French (France), German (Germany), Japanese, Korean, Brazilian Portuguese, Chinese (Simplified, China), European Spanish
- Released: 2026-07-24
- Data updated: 2026-08-23
- User reviews in markdown: https://appshunter.io/ios/app/rhythmmorse-learn-morse-code/id6792425879/reviews.md

## What is RhythmMorse?

The world's first Morse code app that actually feels like a game.

Tap to the rhythm of dit and dah. Learn real Morse with the Koch method — the technique radio operators have trusted for decades — and build a daily streak that sticks. No ads. No account. Fully offline.

WHY RHYTHMMORSE
- Morse is rhythm. Instead of staring at a chart of dots and dashes, you tap them: your fingers learn the timing while your ears learn the sound.
- Perfect / Good / Miss judgments, combos and a fever mode turn every drill into a round you want to replay.

LEARN THE KOCH WAY
- 40 levels covering all 41 characters: A-Z, 0-9, punctuation and prosigns
- Start with just two characters at full character speed, then add one at a time
- Adjustable tone frequency, WPM and Farnsworth timing, plus input calibration

MODES
- Rhythm Play: Normal, Speed Run and Survival
- Listening Quiz: hear the code, pick the right character
- Daily Challenge: one seeded run per day — the same puzzle for everyone
- Transmit Practice: key SOS and CQ free on the straight-key trainer

STAY ON TRACK
- Daily streaks with gentle reminders, XP and player levels
- 26 achievements and three fresh daily missions every day
- Per-character accuracy heatmap

RHYTHMMORSE PRO
- All 40 Koch levels
- Full transmit practice: 8 practice texts plus your own custom messages
- Custom Practice: smart drills weighted toward your weakest letters
- Daily Challenge archive: replay any of the last 14 days
- Confusion matrix and WPM history analytics

PRICING
Pro is available as a monthly or yearly auto-renewing subscription — the yearly plan starts with a 7-day free trial — or as a one-time lifetime unlock (non-consumable). Current prices in your local currency are always shown in the app before you buy.

Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. You can manage or cancel your subscription in your App Store account settings at any time. An unused free trial converts to a paid subscription unless cancelled before it ends.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://revot.jp/apps/rhythmmorse/privacy.html

73, and see you on the air.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime Pro | $19.99 | one-time |



## Version history (last 3 releases)

### 1.2 — 2026-08-19

- Purchase failures were silent. If a payment did not go through, the screen simply did nothing. The reason is now shown.
- Restoring a purchase gave no feedback at all. You are now told whether anything was restored.
- Purchases awaiting approval (Ask to Buy) are no longer treated as a plain failure.

### 1.1 — 2026-07-26

- Pro Yearly now starts with a 7-day free trial
- New: Custom Practice — smart drills weighted toward your weakest letters (Pro)
- New: Daily Challenge archive — replay any of the last 14 days (Pro)
- Transmit practice opened up: SOS and CQ are now free for everyone; Pro adds 6 more texts plus your own custom messages
- Achievements, daily missions and streak reminders are now fully live
- Quiz and transmit results now count toward your stats, XP and missions
- All 40 Koch levels are now visible in the Learn tab
- Notifications and many texts localized across all 8 languages, plus lots of fixes

### 1.0 — 2026-07-21

No release notes.

## More apps by REVOT, K.K.

- [SASSEN](https://appshunter.io/ios/app/sassen/id1257719757)
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- [MarkMinutes Pro - AI議事録](https://appshunter.io/ios/app/markminutes-pro-ai/id6792317667)

All apps by REVOT, K.K.: https://appshunter.io/developer/1257719756

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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 2026-08-23.*