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Logic Islands: Deduction Game

Logic Islands: Deduction Game

by Logic Islands Studio LLC

6 ratings
4 reviews
🎮 Games
📚 Education
🧩 Puzzle
Free
In-App Purchases

Details

  • Released
  • Updated
  • June 21, 2026
  • July 2, 2026

Developer

Logic Islands Studio LLC
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Logic Islands: Deduction Game screenshot #10 for iPhone
iphone
ipad
🧾$9.00 - $99.00
In-App Purchase↘︎
⭐4
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📝1+ tags
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❓8 answered
FAQ↘︎
📦~ in 1 week
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About

Engage in handcrafted deduction puzzles that go beyond typical logic games. Explore islands with unique rules, solve daily challenges, and master complex reasoning skills. This game offers a deep intellectual challenge for puzzle enthusiasts.

✓Original deduction puzzles
✓Island-based logic challenges
✓Daily new puzzles
✓Leaderboards and streaks
✓Step-by-step hints and explanations
✓Learn propositional logic
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What's New in Logic Islands

1.0.1

July 2, 2026

Daily puzzles now count toward your leaderboard standing, plus recovery for returning players and stability improvements across the app, and there is a fresh round of fixes and polish throughout.

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Subscription plans

Logic Islands Pro Monthly

Every island, daily puzzles, pro features. Monthly.

$9.001 Month
How to cancel Logic Islands subscription ⁉️
3

In-App Purchases

$99.00

Logic Islands Pro Lifetime

Unlock permanent premium access to Logic Islands

User reviews

Most RecentHighest RatedLowest Rated

A brilliant workout for your brain

I go to the gym and keep my body in good shape, but it never occurred to me to do the same thing for my brain. But I get the same feeling afterwards-I can literally feel my brain working better when I play Logic Islands, compared to when I haven’t played in a few days. I don’t have any particular background or interest in “logic,” but this is as fun as any game I’ve played, while being the opposite of brain-rot games that people otherwise waste time playing. Logic Islands would be worth it as 10x the cost - it’s the best thing on my phone behind actual phone calls and texting. Maintain your brain!
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Lumberjack1900Lumberjack1900

Very smart!!

This really makes you think. Well done!!
Old mustache guyOld mustache guy

Good daily mind training app

I’m always looking for a way to train my mind, and this app is it! The explanations are well crafted and hints well placed when I hit a wall. Highly recommend!
MonomerManMonomerMan

goated logic game

hands down the best logic puzzle game i've ever played. lots of deep, challenging content that actually taught me a few things, and you can play without an internet connection 🥹 perfect for travel and daily brain training
0xzoo0xzoo

FAQ

What kind of puzzles does Logic Islands offer?

Logic Islands features original handcrafted deduction puzzles, inspired by Raymond Smullyan's knights and knaves logic. These puzzles involve islanders who either always tell the truth or always lie, requiring players to deduce who is who based on their statements.

Is Logic Islands suitable for younger players?

Logic Islands has an age rating of 9+, making it appropriate for children and adults. The game's puzzles are designed to be challenging yet understandable, with helpful guidance available.

Can I play Logic Islands offline?

The description does not specify if Logic Islands can be played offline. However, the mention of daily puzzles and leaderboards suggests that an internet connection may be required for full functionality.

How often are new puzzles added to Logic Islands?

Logic Islands adds a fresh trio of puzzles every morning, including a warmup, a challenge, and a master puzzle. These are separate from the main island puzzles.

Does Logic Islands have ads?

No, Logic Islands does not contain advertisements. The app is free to download and play, with optional in-app purchases available for additional content or features.

What are the subscription options for Logic Islands?

Logic Islands offers two subscription plans: Logic Islands Pro Monthly for $9.00 and Logic Islands Pro Yearly for $60.00. These subscriptions likely unlock premium features or content.

How does Logic Islands help players improve their reasoning skills?

The game provides targeted nudges and explanations from 'Professor Logic' when players are stuck or after solving a puzzle. This helps players understand the underlying reasoning principles, including propositional logic, strategic questioning, and reasoning about knowledge.

What makes Logic Islands different from other logic games like Sudoku?

Logic Islands focuses on original deduction puzzles, not simple logic grids or Sudoku clones. It emphasizes reasoning about characters' knowledge and statements, similar to philosophical logic puzzles, rather than just numerical or pattern matching.