RST 599 Pro vs OpenShack Morse Code Trainer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RST 599 Pro
This application simulates amateur radio CW QSOs with realistic call signs, signal levels, and speeds. It supports various QSO styles, pile-ups, and includes features like RIT, CW filters, and a spectrum scope for an immersive experience.
- Realistic CW QSO simulation
- Pile-up reproduction (up to 5 stations)
- Multiple QSO style support
- RIT and CW filter functions
- Spectrum scope display
- Customizable call sign and CW speed
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This app is a real CW QSO simulator for Amateur Radio. "599BK type QSO", "Rubber stamp type QSO" and "Contest type QSO" are supported. In addition, the call sign, signal level, CW speed, etc. that occur differ for each QSO in order to achieve realism. Furthermore, the call sign and CW speed of your own station that issues CQ can be set arbitrarily. 【Main features】 1. Reproduction of "pile-up" Called from up to 5 stations simultaneously. 2. "599BK","Rubber Stamp" and "AADX Contest" style support. 3.RIT and CW filter functions Band Width(100-999Hz) control supported. 4.Landscape display support. 5.Realistic signal meter according to audio signal level. 6.Status display showing TX / RX operation. 7.The spectrum scope display 【Other features】 1. Select the number of QSOs to communicate. You can choose from 5,10,20,50,100. 2. Ability to select QRN. You can choose None, Weak, Norm, Hard. 3. Function to select Callsign Area. You can choose from JA's USA's or W / W. 4. Function to select SideTone. 5. Synchronized with CW BandPassFilter. 6. Judgement of "RST, QRA and QTH" or "RST, QRA and WX" information. 7.Supported the ESC button from the long TX/RX. 8.Supported the Score Clear button of Hi-Score. 9.Support the capture function of Hi-Score dialog. 10.Supported the QSB in the mode of "599BK / AADX" and "W/W" Supported keyboard input from Apple Silicon Mac. (Not compatible with iOS) [Support Key] A-Z, 0-9, / Enter:return ESC:esc BS:delete CQ:UpArrow AGN:DownArrow TU:[ LEFT:LeftArrow RIGHT:RightArrow
OpenShack Morse Code Trainer
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The app has several parts: - Morse Trainer: learn CW one character at a time, copying and sending - Advanced Trainer: once you know your alphabet, work on character groups, words, ham radio abbreviations and callsigns, copying and sending - Morse Decoder: reads your sending back to you - Morse Sender: turns text into CW audio, typed live or by copy and paste - Morse Chat: send and decode CW 1:1 with other ops, multi-user, with your own rooms Note: You can send with the on-screen key or with a connected straight key or paddle. There are several hardware options. The most versatile and accurate is the OpenShack Box from openshack.com, but interfaces that emulate a keyboard, such as VBand and Morserino, work too. LEARN MORSE CODE A complete CW course for beginners in 40 lessons. Set your speed and spacing. Farnsworth spacing gives you more time to copy. PRACTISE YOUR SENDING Send with the on-screen key or a connected key. The app shows how even your characters and spacing are, and where your fist departs from standard timing. YOUR PROGRESS The start screen shows your lesson, your practice time and how solid each learned character is. Review your mistakes and drill the difficult characters. Progress and settings stay on your device. Back up and restore your profiles. Compatible trainer profiles from OpenShack for Windows can be imported too. TRAINER FOR ADVANCED OPS With the Advanced Trainer you work on characters, groups, words, ham radio abbreviations and callsigns. Copy what you hear and type it in, or key it back. Set your speed, with longer spacing (Farnsworth) if you want it, and train copying or sending. MORSE DECODER Send with the on-screen key or a connected key and check your fist. The app shows what you send as text. Turn on 'Allow uneven timing' while your spacing still varies. MORSE SENDER Type or paste text and hear it as CW at 5 to 100 WPM, with Farnsworth spacing if you want it. With Immediate on, each character sounds as you type. Sent text is highlighted and the field scrolls along. MORSE CHAT Practise CW or ragchew with other ops over the internet. Type your message, or send with the on-screen key or a connected key. Invite others to a room by link or QR code. They can join free in a browser, no app needed. A callsign or name is all you need to connect. English interface for iPhone and iPad. One purchase includes all five parts. No subscription, no ads and no account registration. With the optional OpenShack Box you can use your own paddle and analyse your fist to the millisecond. The Box also works as a rig keyer and for remote operation. It is sold separately and connects via Bluetooth or Wi-Fi. You'll find the manual and help under About. Try it free in your browser: https://cw.openshack.com OpenShack Box: https://openshack.com/en/keyer/ OpenShack CW Suite for Windows (sold separately): https://openshack.com/en/cw/ OpenShack CW by DL2CC.
Screenshots
Verdict
The clearest difference is update cadence: OpenShack Morse Code Trainer at every 3 days against RST 599 Pro's every 2 months. RST 599 Pro's advantage is price ($4.99 vs $9.99) and iOS requirement (12.0 vs 15.0). On ads, in-app purchases 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
RST 599 Pro costs $4.99 and OpenShack Morse Code Trainer $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
RST 599 Pro ships an update every 2 months, OpenShack Morse Code Trainer every 3 days. The most recent releases landed on November 3, 2026 and November 10, 2026 respectively.
| Parameter | RST 599 Pro | OpenShack Morse Code Trainer |
|---|---|---|
| Price | $4.99 — better | $9.99 |
| Rating | 4.0 (3 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 2 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 40 MB | 5 MB |
| Age rating | 4+ | 12+ |
| Developer | koji kamogawa | Frank Grossmann e.K. |
In-app purchases
RST 599 Pro
No in-app purchases
OpenShack Morse Code Trainer
No in-app purchases
Questions
Is RST 599 Pro free?
Is OpenShack Morse Code Trainer free?
Do RST 599 Pro or OpenShack Morse Code Trainer have ads?
Which is updated more often, RST 599 Pro or OpenShack Morse Code Trainer?
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