RST SEAL vs Dit
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RST SEAL
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.
- Simulated QSO communication
- Randomized QSO elements (Call, RST, Name, QTH)
- Adjustable frequency, speed, and volume
- Noise (QRN) ON/OFF
- Entity selection (W/W, JA, US)
- Fuzzy keying option
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This app is a CW QSO Trainer App for CW beginner of Ham Radio. You can select various information from CALL, RST, Name, QTH, Rig/Ant and Age/WX by random. This allows you to experience the actual QSO communication content in a simulated manner. Default OP Name is "OM", please touch/input your Name by software keyboard. Start with the "START" button. Repeat the previous with the "AGAIN" button. Check the FREQ SPEED and VOL the "VVV" button. [CheckBox] CALL: You will hear a Callsign, enter the callsign and press Enter. RST: You will hear the RST Report, enter the Report and press Enter. NAME: You will hear the OP Name, enter the Name and press Enter. QTH: You will hear the QTH of OP, enter the QTH and press Enter. RIG/ANT: You will hear the Rig or Antenna of OP, enter the Rig/Antenna and press Enter. AGE/WX: You will hear the Age or WX(Weather) of OP, enter the Age/WX and press Enter. QRN: GRN is ON/OFF of the background Signal Noise. Entity: You can choose W/W, JA or US. FuzKey: Fuzzy Keying like a Straight Key. [Slider] FREQ.: You can choose the tone of CW. SPEED: You can choose the speed of CW. VOL.: You can choose the sound level of CW. [Demo Video URL] https://youtu.be/fcRPz94sga8 Supported keyboard input from Apple Silicon Mac. [Support Key] A-Z, 0-9, / Enter:return BS:delete START:UpArrow AGN:DownArrow LEFT:LeftArrow RIGHT:RightArrow
Dit
Learn Morse code by listening and tapping, not by memorizing charts. This app introduces characters by sound and frequency, focusing on real-world usage. It adapts to your learning pace, reinforcing difficult letters and tracking recognition speed.
- Learn by sound, not sight
- Adaptive learning for weak spots
- Real-time character recognition tracking
- Introduces letters by frequency
- Offline functionality
- Progress saving
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Dit teaches Morse code by ear, not by eye. There's no need to memorize a dot-and-dash chart. You hear each character as a sound and tap it back. Characters play at real speed from the start. If they played slowly enough to count individual dots and dashes, you'd do exactly that, and then you'd be stuck translating forever instead of just hearing the letter. The spacing between letters starts generous and tightens as you improve. There are three modes in Dit. Practice walks you through the alphabet and advances when you're ready. Freestyle lets you tap whatever you want and see what it decodes to. Listen plays a character and you type what you heard. The app notices which letters trip you up and brings them back more often. Review Misses just drills your weak spots. It tracks how quickly you recognize each character, so you can tell where you're sharp versus where you're still guessing. Letters are introduced by frequency in real radio contacts, not alphabetically. R, E, A, T, I, N come early, so you're spelling actual words within a few minutes. Works offline. Progress saves on device. Sign in to sync across devices if you want, but you don't have to.
Screenshots
Verdict
RST SEAL and Dit both sit at 4.5 stars, but that hides the real split: 100% of Dit's written reviews are positive against 33% of RST SEAL's. Dit also leads on ads (none vs shown) and monetization model (free vs ad-supported). RST SEAL's advantage is iOS requirement (13.0 vs 15.1). On price, rating, ratings volume and update cadence 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. Neither carries in-app purchases, so what you see is what you pay.
Dit holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 2 and 3 respectively. Written reviews point the same way: 33% of RST SEAL's written reviews are positive against 100% of Dit's.
RST SEAL ships an update every 3 weeks, Dit every 5 weeks. The most recent releases landed on October 6, 2026 and October 5, 2026 respectively.
| Parameter | RST SEAL | Dit |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (2 ratings) | 4.7 (3 ratings) — better |
| Positive reviews | 33.3% of reviews | 100.0% of reviews — better |
| Number of ratings | 2 | 3 — better |
| Update frequency | Every 3 weeks — better | Every 5 weeks |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 9 MB | 56 MB |
| Age rating | 4+ | 4+ |
| Developer | koji kamogawa | Tyler Robinson |
Customer experience
RST SEAL
Dit
In-app purchases
RST SEAL
No in-app purchases
Dit
No in-app purchases









