Hueline: Daily Color Puzzle

Hueline is a daily colour puzzle — classic sudoku, played in colour.

Every row, column, and box holds one of each colour, never a repeat. No numbers, no maths, no clock racing you. Just a quiet shape of logic to fill in, once a day.

ACCESSIBLE BY DESIGN Every colour also carries its own pattern, turned on by default — so Hueline is fully playable whether or not you see hue the same way. Here, colour is information, never decoration.

THREE ROUNDS, ONCE A DAY Each day brings the same three puzzles to everyone: a gentle 4×4 to warm up, a 6×6 to settle into, and a tougher 6×6 to finish. Most days take a minute or two. When you're done, you're done — come back tomorrow.

THE MOSAIC Every day you solve adds a small tile to your Mosaic — a wall of colour that grows, week after week, into something only your streak could make. Clean solves shine. The pattern is yours.

CALM BY DESIGN No timers bearing down. No red, no buzzing, no flashing. A wrong move gets a soft sage glow, not a scolding. Warm paper, quiet type, and a single puzzle to think through. Hueline is the opposite of an arcade.

WHAT'S INSIDE

• A fresh daily puzzle in three rounds (4×4 and 6×6)
• Colour and pattern together, on by default — colourblind-friendly
• The Mosaic: a growing streak you can see
• Streaks, stats, and Game Center leaderboards & achievements
• Gentle hints for when you're truly stuck
• Pencil-mark notes for working through the logic
• Built for iPhone, iPad, and Apple Watch

HUELINE+ Go further with Hueline+:

• Practice mode — any size, any difficulty, any time, off the daily clock
• Bigger boards, up to 8×8
• Unlimited hints
• Extra pattern packs
• Export your Mosaic as a poster

Hueline+ is an auto-renewing subscription, offered weekly, monthly, or yearly, with a one-time Lifetime option. Prices are shown in the app and may vary by region. Payment is charged to your Apple Account at confirmation of purchase. Your subscription renews automatically unless it is turned off at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple Account settings.

Privacy Policy: https://hueline.app/privacy Terms of Use: https://hueline.app/terms

Made with care by J&B Creations. One of each. See you tomorrow.