Best Formal Logic Apps & Games

232+ iOS apps & games curated and reviewed

4.5 avg rating
20 free apps & games
Updated June 2026

Symbols is the household name in formal logic, but it's far from the only option. We track 232+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Top Picks for Formal Logic

Symbols: Learn Logic#1

Symbols: Learn Logic by Matthew Rayes

Learn Symbolic Logic Easily
Editor's Choice
📚 Education
4.5(8 ratings)
FreeIn-App Purchases
Symbols: Learn Logic screenshot 1
Symbols: Learn Logic screenshot 2
Symbols: Learn Logic screenshot 3
Symbols: Learn Logic screenshot 4
Symbols: Learn Logic screenshot 5
Symbols: Learn Logic screenshot 6

Learn symbolic logic through interactive exercises and visual study cards. Master rules of inference, evaluate arguments, and translate everyday language into formal logic. Progress through various activities to build and solidify your understanding of logical reasoning.

The Logic Calculator#2

The Logic Calculator by Ioannis Votsis

Strong Contender
🔧 Utilities
4.4(7 ratings)
Free
The Logic Calculator screenshot 1
The Logic Calculator screenshot 2
The Logic Calculator screenshot 3
The Logic Calculator screenshot 4

This free utility app helps users perform propositional logic operations with ease. It provides detailed feedback on input well-formedness, sentence types, set consistency, and argument validity. Users can also generate and copy truth tables to other applications.

Logic Puzzles - Clue Game#3

Logic Puzzles - Clue Game by Easybrain Ltd

Brain teasers & cross riddles
Worth Considering
🎮 Games
4.5😞(56K ratings)
FreeAdsIn-App Purchases
Logic Puzzles - Clue Game screenshot 1
Logic Puzzles - Clue Game screenshot 2
Logic Puzzles - Clue Game screenshot 3
Logic Puzzles - Clue Game screenshot 4
Logic Puzzles - Clue Game screenshot 5
Logic Puzzles - Clue Game screenshot 6

Engage your mind with challenging brain teasers and cross logic puzzles. Solve mysteries and unravel intricate stories by using deductive reasoning and elimination. This game offers a fun way to sharpen your logical thinking skills with numerous themed puzzles.

What We Love

  • 👍 Enjoyable logic puzzles
  • 🚀 Daily challenges provide good brain exercise
  • 💡 Events and special puzzles add variety

Room to Improve

  • 🔑 Excessive key requirements to unlock new puzzles
  • 🎮 Forced to play unrelated block puzzle game to earn keys
  • 📺 Too many ads, often interrupting gameplay

More Formal Logic apps to explore

4
Logical Construct & Philosophy
Logical Construct & Philosophy
Logical Construct & Philosophy
Logic & Critical Thinking
Free
$7.99 | 100% OFF
📚 Education
(0)
5
Logic Grid Puzzles
Logic Grid Puzzles
Logic Grid Puzzles
No Ads, Smart Hints, Easy-Hard
Free

Engage your mind with a collection of unique logic grid puzzles. Progress from beginner to master with increasing difficulty and multiple grid sizes. Utilize smart hints, auto-X, and multi-level undo to enhance your puzzle-solving experience.

100 unique logic puzzlesIncreasing difficulty levelsMultiple puzzle sizes
🎮 Games
(38K)
free with in-app purchases
6
Logical Argumentation
Logical Argumentation
Logical Argumentation
Critical Thinking & Philosophy
Free

Master deductive, inductive, and abductive reasoning with interactive lessons and an AI-powered tutor. Practice argument construction, identify fallacies, and track your progress in this comprehensive logic learning tool.

Deductive, Inductive, Abductive ReasoningLogical Fallacies RecognitionArgument Construction & Evaluation
📚 Education
(1)
free with in-app purchases
7
Logic Square - Nonogram
Logic Square - Nonogram
Logic Square - Nonogram
by JaeKwan Jung
Free

This is a free puzzle game where you reveal hidden images by filling in blocks based on number clues. It offers thousands of puzzles, daily new challenges, and online multiplayer modes. Learn the ropes with tutorials and track your progress against others.

Thousands of puzzlesDaily new puzzlesOnline match play
🎮 Games
(214)
free with in-app purchases
8
Nonogram - IQ Logic Pic Puzzle
Nonogram - IQ Logic Pic Puzzle
Nonogram - IQ Logic Pic Puzzle
Picture Cross Griddlers Game
Free

Engage in logic puzzles that reveal pixel art illustrations. This game offers daily challenges and a vast collection of thematic puzzle packs. Play offline and sharpen your mind with easy-to-learn, challenging gameplay.

Solve endless logic puzzlesDiscover pixel art illustrationsDaily challenge levels
🎮 Games
(9.2K)
free with in-app purchases
9
That’s My Seat – Logic Puzzle
That’s My Seat – Logic Puzzle
That’s My Seat – Logic Puzzle
Tricky Puzzles, Fun Logic Game
Free

A logic puzzle game where players must place characters in the correct seats by following specific rules. It offers over 1000 unique puzzles with diverse characters and settings, providing a relaxing yet challenging brain teaser experience.

Over 1000 puzzlesDiverse characters and settingsRule-based logic challenges
🎮 Games
(73K)
free with in-app purchases
10
Clever: Brain Training Games
Clever: Brain Training Games
Clever: Brain Training Games
Mind Games for Adults & Tests
Free

Engage in bite-sized games designed to enhance cognitive abilities like memory, focus, and logic. Track your progress with detailed statistics and receive personalized recommendations to improve your mental skills. This app offers a fun and effective way to train your brain.

40+ brain games4000+ levels7 cognitive categories
📚 Education
(44K)
free with in-app purchases
11
Logic Riddle-Puzzle Games
Logic Riddle-Puzzle Games
Logic Riddle-Puzzle Games
Brain Training Board Games
Free

Engage your mind with logic puzzles by decoding clues and filling grids. Solve thousands of unique challenges with increasing difficulty, from easy to expert. Enjoy a satisfying brain-training experience.

Decode written cluesFill in the gridThousands of unique puzzles
🎮 Games
(22K)
free with in-app purchases
12
100 Logic Games - Time Killers
100 Logic Games - Time Killers
100 Logic Games - Time Killers
Time Killers Puzzle Pack !
Free

Engage your mind with over 100 unique puzzle games, offering a fresh alternative to traditional logic challenges. With thousands of levels, save progress, hints, and note-taking features, it's perfect for keeping your brain sharp during downtime.

100+ unique puzzle typesThousands of levelsSave game progress
🎮 Games
(664)
free with in-app purchases
13
Pindoku-Pixel Block Puzzle
Pindoku-Pixel Block Puzzle
Pindoku-Pixel Block Puzzle
Fit it Piece & Brain Training
Free

Engaging puzzle game where you fit pixel blocks to fill the screen. Solve challenges, advance through levels, and unlock themed images. Offers brain training and hours of entertainment.

Fit pixel blocks to fill the screenRotate blocks for ideal placementConquer speed-driven tasks
🎮 Games
(6.8K)
free with in-app purchases
14
Logicals
Logicals
Logicals
Logic Problem Puzzles
Free

Engage your mind with logic grid puzzles, similar to classic brain teasers. Solve riddles with varying difficulty levels and customizable layouts. Available across multiple Apple devices.

Logic grid puzzlesMultiple difficulty levelsCustomizable layouts
🎮 Games
(2K)
free with in-app purchases
15
Elevate - Brain Training Games
Elevate - Brain Training Games
Elevate - Brain Training Games
Vocab, Memory, & Math Puzzles
Free

Enhance cognitive abilities like focus, memory, and math skills with a personalized daily training program. Improve productivity, earning power, and self-confidence through engaging brain games designed by experts.

40+ brain training gamesPerformance trackingPersonalized workouts
📚 Education
(534K)
freemium
16
Nonogram.com Color: Logic Game
Nonogram.com Color: Logic Game
Nonogram.com Color: Logic Game
Solve multicolor pixel puzzle!
Free

Engage in a vibrant logic puzzle experience by filling colored squares to reveal hidden pixel art. This game offers a fresh take on classic nonograms with enhanced gameplay and challenging multicolor puzzles. It's easy to learn and provides hours of addictive fun for puzzle enthusiasts.

Fill squares with colorsReveal hidden picturesChallenging multicolor puzzles
🎮 Games
(25K)
free with in-app purchases
17
Free to Fit: Color block puzzle logic stack dots
Free to Fit: Color block puzzle logic stack dots
Free to Fit: Color block puzzle logic stack dots
by Lam Thanh
Free

Engage in a distinctive block puzzle game where you strategically drop blocks to form and clear full lines. Avoid filling the screen to achieve high scores in this addictive challenge.

Drop blocks to create linesDestroy full vertical and horizontal linesPrevent screen from filling
🎮 Games
(1.6K)
free with in-app purchases
18
Riddle Stones - Cross Numbers
Riddle Stones - Cross Numbers
Riddle Stones - Cross Numbers
Logic number grid puzzles
Free

Engage your mind with logic puzzles based on number grids. This game challenges you to activate squares using numerical clues, similar to picross or nonograms. It offers a fun and addictive brain-training experience with increasing difficulty.

Logic number grid puzzlesPicross, griddler, nonogram styleNumber-based deduction
🎮 Games
(1.2K)
free with in-app purchases
19
Real Logic Riddle Puzzle
Real Logic Riddle Puzzle
Real Logic Riddle Puzzle
Pure Logic Puzzles
Free

Engage your brain with a logic puzzle game that challenges you to deduce a scenario using only a set of clues. Solve thousands of riddles, from simple to complex, with daily challenges and helpful filters.

Thousands of logic riddlesDaily free challengesIncreasing difficulty levels
🎮 Games
(5.3K)
ad-supported
20
Sudoku Master Edition
Sudoku Master Edition
Sudoku Master Edition
Daily Sudoku & Logic Puzzles
Free

This app offers a comprehensive Sudoku experience with numerous customization options, multiple game modes, and difficulty levels. It features a minimalist design, daily challenges, and Apple Pencil integration for a pen-and-paper feel.

Customizable themes and fontsMultiple game modes (Lightning, Mistake, Classic, Zen)5 difficulty levels
🎮 Games
(7.9K)
free with in-app purchases