Signal vs Morse Invaders
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Signal
Learn and practice Morse code with this engaging app. It offers interactive tapping, real-time scoring, and haptic feedback to make learning fun and effective. Ideal for beginners and those looking to refresh their skills.
- Interactive dot/dash tapping
- Real-time scoring system
- Haptic feedback for errors
- 100+ word list
- Distraction-free design
- Optional sound feedback
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Signal - Morse Code Practice Learn and practice Morse code the easy way. Whether you’re just starting out or brushing up on your skills, Signal makes it fun, simple, and effective. Features: • Tap out words using dot and dash buttons with instant feedback • Real-time scoring: 1 point for easy words, 10 points for hard ones • Haptic feedback for mistakes keeps you on track without breaking your flow • Growing word list with 100+ words covering the entire alphabet • Clean, distraction-free design for focused practice • Optional sound feedback to train your ear • Simple settings, including a quick Feedback link for ideas and suggestions Why Signal? Unlike static charts or drills, Signal gives you immediate response, gamified scoring, and a smooth interface designed for daily practice. Whether you’re studying for amateur radio, brushing up on maritime signals, or just love learning codes, Signal helps you get fluent in tapping Morse. More features coming soon: Listen & Decode mode, new challenges, and expanded word banks. Start learning Morse code today — fast, fun.
Morse Invaders
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Invaders are falling. Your only weapon is Morse code. Morse Invaders is a Space-Invaders-style arcade game that teaches you real Morse code as you play. Every falling invader carries a letter or a word — key in its dot-dash pattern before it reaches the bottom, and it explodes. Miss it, and you take the hit. There's one control: a single telegraph-style key. Tap it for a dot, hold it for a dash — just like a real operator. No menus of buttons, no busywork. Just you, the key, and the code. HOW TO PLAY • Tap the key for a dot, hold it for a dash • Match an invader's full Morse pattern to destroy it • Tap a falling invader anytime to reveal its code if you get stuck • Survive as many waves as you can and chase your high score THREE WAYS TO PLAY • Learning Mode — letters are introduced gradually using the Koch method (the standard order for training your ear to recognize Morse code), with periodic quiz waves that hide the hints to test what you've actually learned • Normal Mode — all letters in play, hints available on tap • Words Mode — full common English words fall instead of single letters, and you key in the entire word as one continuous stream of dots and dashes Fall speed adjusts to difficulty automatically — longer patterns with more dashes fall slower, giving you time to think through trickier code. NO CATCH Morse Invaders is completely free, with nothing locked behind a purchase. No ads, no accounts, no data collection of any kind. If you enjoy it and want to help keep it on the App Store, there's an optional one-time note with a link to buy the developer a coffee — entirely optional, never required. Whether you're a ham radio operator brushing up, a student learning Morse code from scratch, or just want an arcade game with a real skill behind it, Morse Invaders turns practice into something you'll actually want to play.
Screenshots
Verdict
The clearest difference is update cadence: Morse Invaders at every 4 days against Signal's monthly. On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Signal ships an update monthly, Morse Invaders every 4 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.
| Parameter | Signal | Morse Invaders |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (27 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 27 — better | — |
| Update frequency | Monthly | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.6 | 17.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Benjamin Pelley | Gregory Porter |
In-app purchases
Signal
No in-app purchases
Morse Invaders
No in-app purchases
Questions
Is Signal free?
Is Morse Invaders free?
Do Signal or Morse Invaders have ads?
Which is updated more often, Signal or Morse Invaders?
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