Comparison

RST 599 Pro vs MTP Code Groups

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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

About

MTP Code Groups

Features
Read full description

MTP Code Groups delivers CW / Morse Code focused practice with random character groups, similar to classic LCWO-style drills. This training mode is perfect for smoothing out hesitation and improving character transitions. Pick the group length and session size, then copy each group at speed. The feedback is straightforward so you can spot weak areas and refine timing without getting lost in extra features. Code group practice is a staple for operators who want cleaner, more automatic decoding. It removes context clues and forces pure recognition, which makes real-world copying feel easier by comparison. You can use this app as a daily warmup, a speed-building sprint, or a way to sharpen precision before longer QSOs. Sessions stay compact, which makes it easy to repeat them and track improvement. Adjust the group length to match your goals: shorter groups for precision, longer groups for flow. The idea is to keep your rhythm steady and your spacing consistent, which carries directly into on-air copying. Over time, the random groups help reduce guesswork and encourage confident recognition of each character. MTP Code Groups is a dedicated micro-app with a single, targeted focus. It is part of the Morse Trainer Pro ecosystem, offering a familiar interface while keeping your attention on a single training routine.

Screenshots

RST 599 Pro4 screens
MTP Code Groups4 screens

Verdict

The call

The clearest difference is price: MTP Code Groups at Free against RST 599 Pro's $4.99. RST 599 Pro's advantage is iOS requirement (12.0 vs 15.1). On update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

MTP Code Groups is free to download; RST 599 Pro costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

RST 599 Pro ships an update every 2 months, MTP Code Groups every 6 weeks. The most recent releases landed on October 6, 2026 and September 26, 2026 respectively.

Scorecard2 real differences · 8 level
RST 599 Pro versus MTP Code Groups: the parameters behind the verdict, then further details
ParameterRST 599 ProMTP Code Groups
Price$4.99Free — better
Rating4.0 (3 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 2 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS12.0 — better15.1
Further details — not scored
Size40 MB49 MB
Age rating4+4+
Developerkoji kamogawaOliver Bross

In-app purchases

None

RST 599 Pro

No in-app purchases

None

MTP Code Groups

No in-app purchases

Questions

Is RST 599 Pro free?
RST 599 Pro costs $4.99, with no in-app purchases.
Is MTP Code Groups free?
MTP Code Groups is free to download, with no in-app purchases.
Do RST 599 Pro or MTP Code Groups have ads?
Neither RST 599 Pro nor MTP Code Groups shows ads.
Which is updated more often, RST 599 Pro or MTP Code Groups?
RST 599 Pro ships an update every 2 months, and MTP Code Groups every 6 weeks. Most recently, RST 599 Pro was updated on October 6, 2026 and MTP Code Groups on September 26, 2026.

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