Deduce
Daily deduction challenges
Free · In‑App Purchases · Designed for iPad
Daily logic puzzles. 100+ to start. No ads, no timers. Quick to play, tricky to master. Great for kids & pros alike. Pure deduction fun—anytime, anywhere.
Train your brain with Deduce — the ultimate daily logic challenge!
Whether you’re a curious beginner or a seasoned puzzler, Deduce delivers fresh, satisfying challenges every single day.
Daily Puzzles
• Three brand-new puzzles every day: Easy, Medium, and Hard
• Ideal for a quick 5-minute challenge or a deep dive
Instant Archive Access
• Unlock and play over 100 puzzles right from the start
• Explore past puzzles with the sleek calendar view
Special Puzzle Packs
• Download themed packs — some free, some available for purchase
• New packs added regularly without needing an app update
For All Skill Levels
• Challenging enough to stump experienced puzzle fans
• Great for teaching kids logical thinking
Built-in Guide
• Learn the ropes quickly with an in-app tutorial
• Master subtle strategies as you go
Every Puzzle is Handcrafted
• One unique solution per puzzle
• No guessing — all connections must be used
Pure Gameplay, No Distractions
• No ads, no timers, no pressure
• Clean interface designed to keep you focused
• Progress is saved automatically
Deduce is your daily dose of logical satisfaction — quick to pick up, impossible to put down.
The developer, Mark Mainwood, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Mark Mainwood
- Size
- 64.1 MB
- Category
- Puzzle
- Compatibility
Requires iOS 12.0 or later.
- iPhone
Requires iOS 12.0 or later. - iPad
Requires iPadOS 12.0 or later. - iPod touch
Requires iOS 12.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Extra Hard Pack 1 $1.99
- Easy Pack 1 $0.99
- Medium Pack 1 $0.99
- Just x and > 1 $0.99
- Just + and > 1 $0.99
- Mixed Pack 1 $0.99
- Just + and x 1 $0.99
- Hard Pack 1 $0.99
- Kids' Pack 1 $0.99
- Access Archives $1.99
- Copyright
- © 2025 Mark Mainwood