125+ iOS apps curated and reviewed
RST 599 is the household name in koji kamogawa, but it's far from the only option. We track 125+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.8★ (8) | Yes | No | May 2026 |
| 2 |  | Free | 5.0★ (6) | Yes | No | Jul 2026 |
| 3 |  | Free | 4.1★ (9) | Yes | No | May 2026 |
| 4 |  | Free | 5.0★ (1) | Yes | No | May 2026 |
| 5 |  | Free | 5.0★ (3) | Yes | No | May 2026 |
| 6 |  | Free | 5.0★ (1) | Yes | No | May 2026 |
| 7 |  | Free | — | Yes | No | May 2026 |
| 8 |  | Free | — | No | No | May 2026 |
This application simulates amateur radio CW QSOs with realistic call signs, signal levels, and CW speeds. It supports various QSO styles, including contest and rubber stamp types, with adjustable settings for a personalized training experience.
This application decodes Morse code from your microphone, acting as a practice tool to verify your keying accuracy. It offers advanced features like BPF and FFT decoders with automatic frequency and gain control, allowing for fine-tuning of reception parameters.
This application simulates Morse code communication for amateur radio operators. It supports various QSO styles, Morse code input via a touch keyer, and includes a CW decoder. Features allow for speed control, status display, and shortcut keys for common phrases.
This utility app provides spectrum scope and waterfall displays for amateur radio operators. It enhances radios lacking these features by analyzing microphone input, allowing for clear distinction of Morse code and detailed audio frequency visualization.
This app simulates amateur radio QSOs, allowing users to practice CQ calls and exchange signal reports. It offers realistic variations in call signs, voice quality, and signal levels for an authentic experience. Users can customize their own call sign and select various communication modes.
Learn Morse code through guided steps and practice listening with random generation. Customize volume, playback speed, and tone, with added features like reverb and noise simulation for realistic training.
Practice simulated radio communications for ham radio beginners. Select various QSO elements like callsigns, names, and locations to train your listening and typing skills. Adjust frequency, speed, and volume for a personalized learning experience.
This app simulates real-time CW QSO interactions for amateur radio enthusiasts. It offers various QSO styles, realistic signal conditions, and customizable station settings for an authentic experience. Features include pile-up reproduction and RIT/filter functions.
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.
Learn Japanese KANA-based Morse code with this comprehensive practice app. It offers step-by-step lessons, random generation for reception practice, and customizable audio settings. Additional features include reverb, noise simulation, and various keying methods for realistic training.
