Cross Math vs Operandi
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Cross Math
Engage your mind with a math puzzle game that uses addition, subtraction, multiplication, and division. Progress through increasingly difficult levels, track your performance, and enjoy daily challenges to sharpen your logic and math skills.
- Arithmetic puzzles (add, subtract, multiply, divide)
- Progressive difficulty levels
- Unlimited undo function
- In-game hints
- Progress statistics
- Daily challenges
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Cross Math is a very interesting math puzzle game. The math puzzles in the game are composed of addition, subtraction, multiplication and division, which can exercise your thinking logic. The game has levels composed of math puzzles of different difficulties. The higher the level of the level, the more difficult the math puzzles are. You can see yourself improving because of this game. We also hope that you can improve your math level because of our game. Main Features - Use addition, subtraction, multiplication and division to complete math puzzles! - Levels. The step-by-step gameplay helps you to continuously improve yourself! - Unlimited Undo. Fill in the wrong number? Don't worry, you can easily undo it with just one click! - Hints. Clicking on the hint can help you solve the puzzle! - Statistics. Your progress statistics will help you record and strive for a new high score in each game! Highlights - Challenge levels to increase your level and witness yourself getting stronger. - Improve your math level while enjoying the game. - Daily Challenges. Solve a Cross Math puzzle every day to keep the neurologist away. Cross Math puzzles are the perfect way to improve your math skills and get a feel for math in the process, so give it a try and have some fun! Challenge your brain with math games, download and play Cross Math now!
Operandi
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The target is 72, exact, no going over. You have six moves, four plus and two divide. Can you see the path? Operandi is a math puzzle game of logic and mental calculation: tap a number, a sign and another number, and the result adds up to your total. Every level is handcrafted, with an elegant solution waiting to be found. A brain teaser that feels great every single time. HOW TO PLAY Tap a number, a sign and another number: the result adds to your total and gets you closer to the target. Operators have limited uses, moves are counted, and in exact target levels going over is not allowed. Ten seconds to learn, weeks to truly master: perfect brain training for math lovers and puzzle fans alike. 260 HANDCRAFTED LEVELS No random grids: every logic puzzle is designed, tested and tuned one by one. The difficulty ramps up gently, and every chapter brings something new: gold tiles, multipliers, ice to melt, bombs to defuse, eggs to hatch, keys that unlock treasures, a piggy bank to fill up and break open, domino tiles with two faces to choose from, leeches that bite on every move, a phoenix that burns to give you one last chance and a press that crushes its row and column into a single number. THE FIFTH OPERATOR Plus, minus, times, divide... and glue. Stick two numbers together and you get a single one: 3 and 7 become 37. Only a few uses per level, but every merge can turn the game around. LEVELS THAT FIGHT BACK The deeper you go, the more the board comes alive. The tide raises and lowers every number to its own rhythm, a sneaky thief steals your best tile when his countdown runs out, closing walls squeeze your total, blackouts force you to keep the count in your head and reefs wreck anyone who lands right on them. The rotor decides which sign you may use each turn, day and night swap the rules between them, streaks reward whoever sticks with the same operator, earthquakes shuffle the whole board and storms electrify one tile at a time. Plan around them, or turn them into your finest weapon. THE DUEL AT THE TOP OF THE TOWER In the last chapter someone is playing against you. The rival calls his blows two moves ahead: he pins down your best tile, drains your total, steals when you least expect it. You have the numbers, he has the sword. A JOURNEY THROUGH 14 WORLDS From the jungle to the desert, from the frozen lands down into the abyss, across floating islands, a clockwork forge and an alchemy lab, from the eclipse to the polar night, all the way to the funfair rides and the rival's tower: the map takes you further one level at a time. THE BOOK OF SEALS Nineteen seals to mint, one for every feat: stars collected, chapters cleared, wins within par, daily streaks, levels won with no boosters. Each one pays in coins and raises your rank in the Order, from Addend to Infinity. THE DAILY CHALLENGE A new daily puzzle every day, the same grid for everyone. Win it and grow your streak: how many days in a row can you keep it alive? THREE STARS, IF YOU EARN THEM Every level has a par, just like golf. Solving it with the perfect line is worth three stars, and most levels hide a feat on top: win without ever using times, finish with a division, land exactly on the target. Pull it off and it pays in coins. Perfectionists, you have been warned. TRAIN YOUR BRAIN ANYWHERE Play offline, no internet, no sign up, no account. Five minutes in a queue or a whole evening on the couch, you set the pace. And when you get stuck, hints and boosters have your back. If you love number games, brain games and math riddles, Operandi will feel like home. Download it free and hit your first target.
Screenshots
Verdict
The clearest difference is iOS requirement: Cross Math at 13.0 against Operandi's 15.0. On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Cross Math ships an update every 10 days, Operandi weekly. The most recent releases landed on October 30, 2026 and October 8, 2026 respectively.
| Parameter | Cross Math | Operandi |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (1.3K ratings) — better | — |
| Positive reviews | 76.5% of reviews | — |
| Number of ratings | 1.3K — better | — |
| Update frequency | Every 10 days | Weekly — better |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 92 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | Joy Star Games | claudio pellegrino |
Bugs and requests
Cross Math
Reported bugs
2 issues- App hanging and crashing when opened multiple times a day
- Ads causing an endless loop and requiring app restart
Requested features
2 requests- Ability to pay to remove ads
- Option to purchase hints
Operandi
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Cross Math
No in-app purchases
Operandi
No in-app purchases








