RST MR
koji kamogawa Education iPhoneiPadiPod touch
RST MR is a free Education app for iPhone and iPad by koji kamogawa. Requires iOS 15.0. Updated August 14, 2026.
- Price
- Free
- on the App Store
- Size
- 10 MB
- Age 4+
- Updated
- Aug 14
- 2026 · v2.1.0
Screenshots
About RST MR
This app is a practice app for memorization reception, which can be said to be essential for Morse reception. Memorization reception is also called "delayed reception", and it is a method of interpreting the heard Morse code with a delay after listening to the Morse code for several characters, instead of interpreting it immediately (writing it on paper etc). It is not necessary for receiving low-speed Morse code, but it is an essential reception technique for receiving some high-speed Morse code. [App features] 1. The code length generated is a minimum of 5 characters and a maximum of 20 characters, in units of 1 character. It can be set arbitrarily. 2. The minimum number of delayed characters is 1 and the maximum is 10 characters. However, it cannot be set longer than the code length to be generated. 3. Use the in-app keyboard until you reach the set number of delayed characters. Even if you enter characters, the input operation will be ignored. 4. The generated code is "alphabet only" or "alphabet" You can select either "+ number". To select "alphabet + number", select the number check box. 5. The dial tone of the generated Morse code can be changed with the "Frequency" slide bar. (Variable range: 300Hz-900Hz) 6. The speed of the generated Morse code can be changed with the "Speed" slide bar. (Variable range: 10CPM to 150CPM) 7. The speed of the generated Morse code can be changed with the "Volume" slide bar. You can also adjust with the volume button on the main unit. [How to use the app] 1. Set the "code length" and "delayed character". * At first, "code length: 5 delayed characters: 1" is recommended 2. Set "Frequency", "Speed" and "Volume". * "Frequency: 600Hz", "Speed: 50-60CPM", "Volume" are optional 3. When you press "START", you will hear the Morse code, so you can use the app Enter the code with the keyboard. However, during the number of characters of "delayed characters", memorize without inputting and the number of characters When you reach, enter from the first letter you memorized. 4. If you cannot hear the characters of "code length" length, press "AGN". The Morse code was heard from the beginning again, so enter the correct characters. 5. Finally press "Enter" 6. Press "Enter" to score, and after a certain amount of time, the next Morse code You will hear it, so enter the code on the keyboard of the app in the same way. 7. If you make a mistake in the input characters, you can correct them using "BS" and etc. When the operation for 8.10 questions is completed, the scoring result pop-up will be displayed.
What’s new
Version 2.1.0 · Updated August 14, 2026
Supported the Dark mode.
App privacy
The developer, koji kamogawa, reported these privacy practices to Apple.
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location: Coarse Location
- Identifiers: User ID, Device ID
- Usage Data: Advertising Data, Other Usage Data
- Diagnostics: Crash Data, Performance Data, Other Diagnostic Data
- Other Data: Other Data Types
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Location: Coarse Location
- Identifiers: User ID, Device ID
- Usage Data: Advertising Data, Other Usage Data
- Diagnostics: Crash Data, Performance Data, Other Diagnostic Data
- Other Data: Other Data Types
Used for: Third-Party Advertising, Analytics, Other Purposes
Alternatives to RST MR
Looking for apps like RST MR? Here are 6 similar apps on the App Store. The highest rated is HAM Radio General Exam Prep (5.0/5), and 5 of the 6 are free to download.
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| RST MR | – | Free | August 14, 2026 | |
| Morse Master:CW Trainer | – | Free | Aug 8, 2026 | Compare |
| 会話を始める前の英文法 | – | 5.99 USD | Jul 9, 2025 | Compare |
| MTP Callsign Trainer | – | Free | Sep 24, 2026 | Compare |
| アマチュア無線技士 第三級 合格ドリル | – | Free | Jul 29, 2026 | Compare |
| HAM Radio General Exam Prep | 5.0 / 5 (1) | Free | Apr 9, 2025 | Compare |
| HAM Radio Extra Test Prep 2025 | – | Free | Apr 17, 2025 | Compare |
Compare RST MR with the top alternatives: ratings, updates, ASO score and keyword gaps →