MellowLines 2: Block Puzzle
Complete It in One Line
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Connect every cell in one continuous line of color. Enjoy 1,000 puzzles, special Challenge stages, hints, and Answer Fill in the calm, minimal world of MellowLines.
Fill every block with one continuous line.
MellowLines 2 is a one-line block puzzle with simple rules and increasingly challenging stages.
Start from the beginning, trace a continuous path, and fill every block on the board to complete the puzzle. Early levels are easy to pick up, while later stages ask you to think ahead and choose each move carefully.
Features
• 1,000 puzzle levels
Explore a wide variety of boards and paths as you progress.
• Simple one-line gameplay
Complete the board by filling every block with one continuous path.
• Progressive difficulty
Start with approachable puzzles and work your way toward more demanding challenges.
• Challenge Mode
Test your puzzle skills under more demanding conditions.
• Hints, solutions, and skips
Use assistance when you get stuck and keep your progress moving.
• Stars and progression
Complete puzzles, earn stars, and build your progress over time.
• Game Center support
Track your achievements and put your puzzle skills to the test.
Whether you want a quick puzzle break or a level that makes you stop and think, MellowLines 2 keeps the rules simple while giving you plenty to solve.
Find the path. Fill every block. Complete it in one line.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
We’ve improved MellowLines to make every puzzle session smoother and more reliable.
• Added an intro and free skip option for special Challenge stages.
• Set all Challenge stages to a 60-second time limit.
• Rebalanced time limits across regular stages based on difficulty.
• Improved accessibility so puzzles can be played using VoiceOver.
• Improved the reliability of saving and restoring stars, hints, and Answer Fill credits.
• Improved reward behavior when ads are unavailable.
• Enhanced overall performance and fixed various issues.
The developer, ChanGyu Kang, 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 Linked to You
The following data may be collected and linked to your identity:
- Location
- Identifiers
- Usage Data
- Diagnostics
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- ChanGyu Kang
- Size
- 11.4 MB
- Category
- Puzzle
- Compatibility
Requires iOS 17.6 or later.
- iPhone
Requires iOS 17.6 or later. - Mac
Requires macOS 14.6 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.3 or later.
- iPhone
- Languages
English and 16 more
- English, Danish, Dutch, French, German, Italian, Japanese, Korean, Norwegian Bokmål, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Traditional Chinese, Turkish
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- Answer Fill Pack · 30 $2.99
- Answer Fill Pack · 15 $1.99
- Answer Fill Pack · 5 $0.99
- Hint Pack · 60 $2.99
- Hint Pack · 10 $0.99
- Hint Pack · 30 $1.99
- MellowLines 2 Pro $3.99
- Copyright
- © 2026 Nicechann Studio

