Comparison

Signal vs Morse Invaders

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

Head to head
About

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.

Highlights
  • Interactive dot/dash tapping
  • Real-time scoring system
  • Haptic feedback for errors
  • 100+ word list
  • Distraction-free design
  • Optional sound feedback
Features
Read full description

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.

About

Morse Invaders

Features
Read full description

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

Signal2 screens
Morse Invaders4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Signal ships an update monthly, Morse Invaders every 4 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard1 real difference · 9 level
Signal versus Morse Invaders: the parameters behind the verdict, then further details
ParameterSignalMorse Invaders
PriceFreeFree
Rating5.0 (27 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings27 — better—
Update frequencyMonthlyEvery 4 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad — betteriPhone
Requires iOS17.617.0 — better
Further details — not scored
Size2 MB4 MB
Age rating4+4+
DeveloperBenjamin PelleyGregory Porter

In-app purchases

None

Signal

No in-app purchases

None

Morse Invaders

No in-app purchases

Questions

Is Signal free?
Signal is free to download, with no in-app purchases.
Is Morse Invaders free?
Morse Invaders is free to download, with no in-app purchases.
Do Signal or Morse Invaders have ads?
Neither Signal nor Morse Invaders shows ads.
Which is updated more often, Signal or Morse Invaders?
Signal ships an update monthly, and Morse Invaders every 4 days. Most recently, Signal was updated on November 5, 2026 and Morse Invaders on October 31, 2026.

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