Morse Trainer Pro vs LemurKey
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Morse Trainer Pro
Master Morse code with a data-driven training system. Adaptive sessions adjust speed and difficulty, while customizable practice modes and realistic audio help build accuracy and confidence for beginners and advanced operators alike. Track progress with detailed statistics and train offline.
- Adaptive CW training engine
- Customizable practice sessions
- Realistic CW audio generation
- Word, call-sign & random group training
- Performance tracking & statistics
- Works offline
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Morse Trainer Pro is continuously improved based on user feedback. If you encounter an issue or have suggestions for new features, you can reach us anytime via the Support URL. Morse Trainer Pro is a modern, data-driven Morse code training system designed for both beginners and advanced operators. Built on proven learning principles and real-world CW workflows, it helps you build speed, accuracy, and confidence through structured, configurable, and adaptive practice sessions. Whether you are just starting your CW journey or preparing for high-speed copying and contest performance, Morse Trainer Pro provides the tools, analytics, and training modes needed to progress effectively. Key Features • Adaptive CW Training Engine Automatically adjusts tone speed, character speed, spacing, and difficulty based on your performance. • Customizable Practice Sessions Create your own playlists, select specific characters, define speed ranges, set Farnsworth spacing, and fine-tune every detail of your training. • Realistic CW Audio Generation High-quality sidetone and precise timing provide an authentic experience aligned with real-world Morse operation. • Word, Call-sign & Random Group Training Choose from character sets, curated word lists, amateur radio call-sign patterns, or fully random groups for targeted skill building. • Performance Tracking & Statistics Review detailed history, accuracy, character timing, session duration, and improvement trends over time. • Clean, Focused Interface Designed for distraction-free training on iPhone and iPad with dark and light modes. • Works Offline Train anywhere — no connection required. Morse Trainer Pro is built in collaboration with active CW operators and designed for long-term progression, whether your goals are on-air communication, contesting, SOTA/POTA operations, or simply mastering a timeless skill. Your CW journey starts here. Train smarter. Copy faster. Learn Morse with confidence. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
LemurKey
This app provides Morse code receiving practice for callsigns, sentences, and two-way contacts. It features adjustable settings, a Koch-style learning mode, and simulated interference for realistic training. Compete with friends on leaderboards and track your progress.
- Morse receiving practice
- Adjustable WPM and spacing
- Scripted two-way QSO mode
- Live DX band conditions
- Koch-style learning mode
- Simulated interference options
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LemurKey is Morse receiving practice built to practice real copy skills — callsigns, sentences, and two-way QSOs. Compete your friends with Strava-style leaderboards and go for the crown! COPY PRACTICE • Word, Callsign, and Sentence modes with slot-based copy • Adjustable WPM, character spacing, tone, and volume • Stars & Watts for clean copies; scrubber unlocks after you listen QSO MODE • Scripted two-way contacts: copy each transmission, then reply • Live accuracy feedback through the exchange LIVE DX • Band conditions and spots tailored to your grid square • Optional location for home grid (when-in-use only) TRAIN • Koch-style Learn mode to build speed character by character • Learn to send Q codes; practice sending by recall • Keys mode to hear any letter at your session settings CHAOS MODE • Optional QRM, QRN, and QSB while copying • Higher watt multipliers when the band gets noisy ACCOUNT (OPTIONAL) • Sign in to sync progress, compete on leaderboards, and back up stats • Delete your account anytime from Account Works offline for practice once installed. Audio runs locally on your device. Privacy policy: https://lemurkey.app/privacy.html Support: support@lemurkey.app
Screenshots
Verdict
The clearest difference is review sentiment: LemurKey at 100% against Morse Trainer Pro's 0%. LemurKey also leads on rating (5.0 vs 2.0) and in-app purchases (none vs 1). On price, ratings volume, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Morse Trainer Pro sells 1 in-app purchase, starting at $24.99 per year. LemurKey asks for nothing beyond the download.
LemurKey holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews point the same way: 0% of Morse Trainer Pro's written reviews are positive against 100% of LemurKey's.
| Parameter | Morse Trainer Pro | LemurKey |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (1 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 3 weeks | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.1 | 15.0 — better |
| Further details — not scored | ||
| Size | 49 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Oliver Bross | Steve Metcalf |
Customer experience
Morse Trainer Pro
LemurKey
In-app purchases
Morse Trainer Pro
- Morse Trainer Pro - Yearly$24.991 Year
LemurKey
No in-app purchases









