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About
ExactLink - Gem Duo Puzzle is a number line puzzle with a gem theme. Every gem has a twin. Connect each gem pair with one line, and make that line exactly the right length. Not just connected. Exact.
Formerly ExactLink: Number Line Puzzle. The puzzles and modes are unchanged; only the look is new.
HOW GEM PAIRS WORK
In ExactLink, you link two gems by drawing a path between them across the grid, and the path has to be the exact length. That's the whole idea: a logic puzzle about connecting pairs and counting every step. If you enjoy number link, connect-the-dots or line puzzle games, you'll feel at home, with one extra rule that changes everything.
HOW IT PLAYS
Exact length
Each gem pair has a target length. Draw a continuous line from one gem to its twin. Too short or too long, and that pair isn't finished. Counters below the board, such as 7/7, track each gem pair as you play.
Plus and minus tiles
Some tiles carry a plus (+) or minus (−) value, such as +3. Passing through one changes the effective length of your line, so a long detour can be exactly right and a shortcut can fall short.
Exact+
Exact+ is the mode built around exact length and +/− tiles. Every step counts.
Classic
Classic keeps the ExactLink feel with a more traditional flow, for when you want a cleaner line puzzle.
Daily Quest
A fresh challenge every day.
Goals above the board
Two goals are shown above the board. Fill all: every cell on the board must be filled. Match steps: the step count, that is the line length, must be correct.
1,000+ levels
For short sessions or long runs.
QUICK START FOR BEGINNERS
1. Find each gem's twin. Gems come in pairs that share a color and a shape.
2. Read the board. Look at the gems, the +/− tiles and the goals above the board.
3. Draw a path. Drag from one gem to its twin through the grid.
4. Count as you go. Keep track of how many steps your line takes.
5. Use + and − tiles on purpose. Route through them when you need to add or remove length.
6. Fix mistakes fast. Undo a step, Reset the board, or use a Hint when you're stuck.
7. Solve every pair to see CLEARED, then move on to the next level.
THEMES AND ACCESSIBILITY
• New gem theme: gem pairs, colored paths and a CLEARED celebration
• Light & dark themes
• Color-blind friendly palettes, and gems differ in shape as well as color
• 12 languages
• No account required: open and play
FAQ
What does "Match steps" mean?
It's the goal shown above the board: the step count, that is the line length, must be correct. Fill all means every cell on the board must be filled.
Has the gameplay changed?
No. Exact length, +/− tiles, Exact+, Classic and Daily Quest all work as before. Only the theme is new.
Is ExactLink free?
ExactLink is free to download. It includes ads and optional in-app purchases. You can enjoy the core puzzle without paying; in-app purchases are for players who want extras or fewer interruptions.
What if I get stuck?
Use Undo, Reset or a Hint.
Which languages are supported?
English, Spanish, French, German, Italian, Portuguese, Russian, Thai, Japanese, Korean, Simplified Chinese and Traditional Chinese.
ALSO FROM US
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Escape Bear: Nightmare Returns: a 3D endless runner.
Ready? Link the gems and see if your line is… exact.
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What's New in ExactLink
1.0.3
October 2, 2026
ExactLink has a new name: ExactLink - Gem Duo Puzzle. • New gem theme: connect each gem with its twin • Gameplay unchanged: exact-length lines, +/− tiles, Exact+, Classic and Daily Quest
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Subscriptions & In-App Purchases
$0.99
5 Hints
Add 5 hints to your inventory








