Math Crossword — Number puzzle fuses crossword grids with mental math for a free brain workout on Android and iPhone. It runs fully offline, suits every age, and rewards clean arithmetic over speed. The catch is frequent ad breaks between levels.
At a glance
- Developer
- Tripledot Studios Limited
- Platforms
- Android, iOS
- Players
- Single-player
- Language
- English
- Cost
- free
- Offline
- Yes
- Daily puzzle
- No
- Best for
- Casual, Kids & family
What we liked
- Free to play
- Works fully offline
- Suits all ages and skill levels
- Sharpen mental arithmetic day to day
What we didn't
- Frequent ad breaks between levels
- Stability issues reported on Android
- Early levels feel too easy for many adults
What is Math Crossword — Number puzzle?
Math Crossword — Number puzzle is a free title by Tripledot Studios Limited for Android, rated 4.7 out of 5 with over 10 million installs. It borrows the crossword grid and swaps word clues for math equations. Solve each equation, drop the answer into the grid, and a board that looks like a crossword fills in.
The pitch is educational and relaxed. You can play offline, so commutes and flights open up a training window. Hints sit on hand when the numbers get tricky, and the levels climb from gentle to tough. That makes it a fit for kids learning arithmetic and for adults who simply want a mental stretch.
How to win?
You win by filling the whole grid correctly. Every clue is an equation, and the number you place must be both mathematically right and fit the space.
- Read each clue and solve the equation in your head.
- Type the answer into the matching grid cells.
- Clear the full board to finish the puzzle.
Rules
The rules stay light, closer to Sudoku than to heavy strategy. Accuracy matters more than speed.
- Clues are math equations instead of word definitions.
- Fill answers into the crossword grid squares.
- Your answer must match both the spot and the equation.
- Hints are available when you get stuck.
- Harder equations open up as you progress.
Scoring Pattern
The game rewards correct grids over quick guessing. There is no timer, so careful arithmetic carries more weight than fast fingers.
- Solve accurately to fill squares cleanly.
- Wrong entries can lock against you until the board is fixed.
- Harder operations arrive as you climb levels.
- Hints stay useful late for the stubborn equations.

What Players Say
Roughly 44% of reviewers give Math Crossword 4 or 5 stars, while another 44% land at 1 or 2. The praise reads steady. Players call it an excellent educational puzzle that sharpens thinking, helps your mental math from day to day, and holds up for students and adults alike. A few long-time fans say it turns genuinely addictive once you get hooked, and one has reported pushing past the thousands of levels.
The complaints stack on monetization. Seventeen of the twenty-seven sampled reviews call out ads, describing long chains between levels and near-every-level breaks, with some finding no easy way to buy them away. Others flag stability hiccups and crashes between levels, plus early grids that feel too easy. A handful suspect the weekly competition is not fully on the level.
How to Set Up the Game
- Open the app store on your device and search Math Crossword.
- Tap Download; the game is free, so no payment is needed to start.
- Launch it and finish the opening puzzle to learn the grid.
- Play offline from the first launch, no signup required.
- Work through the easy levels first to unlock the harder sizes.
Is it on iPhone?
Yes — Math Crossword — Number puzzle is also on iOS as "Math Crossword — Number Puzzle" by Tripledot Studios Limited, rated 4.8 out of 5 on the App Store. Your progress won't sync between the Android and iPhone versions unless the game offers its own account login, so treat them as separate installs.
FAQ
Is Math Crossword really free?
Yes. The download costs nothing and the core game plays free. Monetization shows up as ad breaks between levels, since there is no straightforward one-time purchase to remove them.
Does it work offline?
It does. Offline play is a headline feature. You can work through the logic and number puzzles anywhere, with no data connection required.
Is it good for kids?
Mostly. The simple addition and subtraction levels suit younger players learning arithmetic. Keep an eye on the ad breaks, which some parents find heavy.
Tips from the Geeks
- Solve the equation before you tap, since a wrong answer plants an error in the grid that some players found hard to shake.
- Bank a smooth streak on the easy levels first, then push into harder sizes once the simple sums stop stretching you.
- Reach for hints on the stubborn equations instead of guessing; reviewers leaned on them to keep momentum.
- Pick your sessions carefully. The ad load between levels is the one thing players most want to change.
- Watch the difficulty curve on Android, since a few players say it dips oddly at higher levels.




