Logic Trio
Star Battle & Binairo Games
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Crowns, Binary and Path, printed fresh every morning as three bold stripes. Each has one solution and never needs a guess. No ads. Saved games now sync through iCloud.
Three logic puzzles a day, printed like a poster: one yellow, one blue, one red. Solve them over coffee and watch your times come down.
Everyone gets the same three puzzles each day. Each has exactly one solution and never needs a guess.
THE THREE STRIPES
Crowns
Place one crown in every row, every column and every colored region. Crowns never touch, not even at the corners. A star battle puzzle.
Binary
Fill the grid with suns and moons. Never three in a row, and every line holds as many suns as moons. The = and × tags tell you which neighbors match. For binairo and takuzu fans.
Path
Draw one line from 1 through every cell, meeting the numbers in order. It looks easy until you notice the corner you skipped.
HINTS THAT TEACH
Tap Hint and the board hatches the cells to look at. Tap again and it tells you why, in plain words, then makes the move. A few days later you'll see those steps on your own.
PROOFS, BACK ISSUES, TALLY
Proofs are endless practice puzzles in four levels, from Easy to Expert. Back issues keep every past Daily on a calendar. The Tally counts your solves, records and runs.
YOUR DAY RUN
Solve a Daily and your run grows. Miss a day and a freeze covers it, one a week. Your run sits on the Lock Screen, today's stripes on the Home Screen, and a spoiler-free result is one tap away when you finish. With iCloud on, saved puzzles and your run move between your devices.
THE DETAILS
- Timer that pauses and covers the board
- Unlimited undo, optional mistake flags
- Auto-X around crowns
- A short hands-on primer for each game
- White or black paper, and region letters for color-blind play
- VoiceOver and Dynamic Type
- Optional Game Center leaderboards and 18 achievements
- One optional morning reminder, nothing else
- No ads, no account, no data collected
- Works offline
FREE AND PREMIUM
Today's three Dailies are always free, along with 3 Proofs per game a day, 3 hints a day and the last 7 days of back issues.
Logic Trio Premium adds unlimited Proofs, every back issue and unlimited hints, plus the full Tally, two freezes a week instead of one, three more colorways and matching app icons.
- Premium Monthly: $2.99 per month
- Premium Yearly: $19.99 per year, starting with a 7-day free trial
- Premium Lifetime: $39.99, once
Prices are in US dollars and may vary by country. Payment is charged to your Apple ID at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period, and renewal is charged within the 24 hours before it ends. Manage or cancel in your App Store account settings. Any unused part of a free trial ends when you buy a subscription. Premium is not shared through Family Sharing.
Questions or ideas? Write to shchukavlad4@gmail.com.
Terms of Use: https://xzot.github.io/logictrio/terms.html
Privacy Policy: https://xzot.github.io/logictrio/privacy.html
Ratings & Reviews
The home screen is now a poster with three bold stripes, one per game, and the boards have heavier lines that are easier to read.
Saved puzzles and your day run now move between your devices with iCloud.
Hints now hatch the cells to look at.
Settings live on the back of the poster: tap the arrows at the top right.
The developer, Vladyslav Shchuka, 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
- Vladyslav Shchuka
- Size
- 3.4 MB
- Category
- Puzzle
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Vladyslav Shchuka
