Link Master vs One Line
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Link Master
Engage your mind with a brain-bending puzzle adventure. This game offers thousands of levels designed to enhance logical thinking and cognitive abilities. Perfect for quick mental workouts anytime, anywhere.
- Thousands of challenging levels
- Multiple puzzle modes (Color, Sequence, One-Line, Block)
- Enhances logical thinking
- Boosts cognitive abilities
- Engaging and addictive gameplay
- Suitable for all ages
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Explore four types of line and path puzzles in one game. Connect matching colors, follow number sequences, draw paths in one stroke, and plan routes that fill every cell. Start with simple puzzles and progress through increasingly complex levels that test your observation, planning, concentration, and spatial reasoning. FOUR PUZZLE MODES 1. Connect Colors Connect dots of the same color without letting the paths cross. Complete every pair and fill the grid to clear the level. The puzzles begin simply, but larger boards require careful planning. 2. Number Path Start from 1 and connect the numbered points in the correct order. Follow the sequence, choose the right route, and complete each board without missing a number. 3. One-Line Puzzle Connect every required point with one continuous stroke. Study the shape before you begin and find a route that completes the entire pattern without lifting your finger. 4. Fill Every Cell Start from the marked position and draw a route through every cell. Plan each move carefully so that no space is left uncovered. GAME FEATURES • Four different logic puzzle modes • Thousands of levels to complete • Multiple difficulty levels • Simple touch controls • Short puzzles for quick play sessions • Increasingly challenging boards • Color, number, line, and grid-based puzzles EASY TO LEARN, CHALLENGING TO MASTER The basic rules are simple, but later levels require more planning and precision. Try different routes, restart when necessary, and discover the correct solution for every puzzle. PLAY AT YOUR OWN PACE Complete a quick puzzle during a break or take your time with a more difficult level. Each mode offers a different type of challenge, from matching colors to planning routes across an entire grid. Test your logic, complete every path, and see how many puzzles you can solve.
One Line
A captivating puzzle game where you must draw a single continuous line to complete intricate figures without crossing your path. Strategically connect the dots with one unbroken stroke to solve each challenge.
- Single line drawing
- Connect the dots
- Figure completion puzzles
- Brain-training gameplay
- Intuitive controls
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One Line is a simple, relaxing and addictive brain puzzle: connect all the dots by drawing every line in a single stroke — without lifting your finger and without drawing a line twice. Easy to learn, hard to master. The first puzzles take seconds, the later ones will really make you think. FEATURES • 240+ handcrafted puzzles in 9 levels • Level 10: endless, freshly generated puzzles that are always solvable • Smart Hint that continues from where you are • Undo and restart anytime • Free coins every day • Clean, colorful design that is easy on the eyes • Play offline, no timer, no pressure • Available in 16 languages HOW TO PLAY Start from any dot and drag your finger along the lines. Every line must be drawn exactly once. Tip: if a dot has an odd number of lines, start or finish there! Train your logic, relax your mind and enjoy the satisfying feeling of solving it in one line.
Screenshots
Verdict
The clearest difference is review sentiment: One Line at 86% against Link Master's 45%. One Line also leads on in-app purchases (none vs 10) and update cadence (weekly vs every 5 months). Link Master's advantage is iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Link Master sells 9 one-off in-app purchases. One Line asks for nothing beyond the download.
Link Master ships an update every 5 months, One Line weekly. The most recent releases landed on November 11, 2026 and November 3, 2026 respectively.
| Parameter | Link Master | One Line |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (224 ratings) — better | — |
| Positive reviews | 45.5% of reviews | 85.7% of reviews — better |
| Number of ratings | 224 — better | — |
| Update frequency | Every 5 months | Weekly — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 88 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | 运杰 高 | Diep Duong |
Customer experience
Link Master
One Line
Bugs and requests
Link Master
Reported bugs
27 issues- Level 1, puzzle 35 fails to advance
- Level 6, impossible puzzles
- Level 6, board 213 incorrect dot count/connections
- Level 7, board 31 dots outside grid
- Level 7, board 31 unsolvable due to dot colors
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- Level 7, board 113 unsolvable
- Hint/help button closes entire app
- Level 7, game 112 unsolvable
- Level 6, puzzle 144 99% complete with phantom dots
- Level 3, puzzle 75 incorrect dot count
- Level 6, puzzle 217 incorrect dot count/colors
- Panel 89, level 5 connecting line wrong color
- Level 5, puzzle 89 incorrect path count
- Level 5, puzzle 89 cannot match colors
- App kicks user out every time
- Level 4, case 5 blue dot misplaced
- Cannot progress past first set of levels without paying
- Level 455 broken, cannot move past
- Many boards with errors that can't be solved
- Level 489, three dots left, cannot be solved
- Higher levels can't be solved, lacking free blocks
- One color doesn't have two dots
- Level 4, case 5 error, blue dot misplaced
- Level 489, 15 dots out of 16
- Level 451 might be impossible
- Reached 200 levels, screen is black, cannot continue
- Level 6x6 number 64, not enough room to complete
Requested features
10 requests- Fix unsolvable puzzles
- Fix bugs in levels
- Add a reset button
- Add an undo move option
- Provide hints without crashing
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- Improve puzzle configurations
- Fix app crashing issues
- Allow progression past blocked levels
- Fix incorrect dot counts/colors
- Fix issues with dots outside the grid
One Line
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Link Master
- Unlock stage 22 variants$0.99
- Unlock stage 19$0.99
- Unlock stage 20$0.99
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- Unlock stage 3$0.99
- Unlock stage 4$0.99
- Unlock stage 5$0.99
- Unlock stage 6$0.99
- Unlock stage 7$0.99
- remove ads$1.99
One Line
No in-app purchases









