Comparison

Planet Math vs Cosuki

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Planet Math

Master math skills through engaging gameplay with this teacher-approved learning game. It offers various modes, from basic arithmetic to advanced concepts, with competitive online play and leaderboards. Designed to make learning fun and rewarding for students of all levels.

Highlights
  • Teacher-approved educational design
  • Multiple game modes (Adventurer, Superhero, Brainiac, Mastermind)
  • Covers arithmetic, fractions, algebra, geometry, calculus
  • Online battles and private rooms
  • Global leaderboards and achievements
  • Hand-drawn visuals and energetic soundtrack
Features
Read full description

Planet Math - Teacher-approved math game where kids master skills through fun Math Has Never Been This Fun Planet Math is a teacher-approved math learning game that transforms math practice into exciting, fast-paced challenges. Designed for kids and students of all skill levels, Planet Math helps players build confidence and master essential math skills through fun gameplay. From basic arithmetic to advanced math concepts, Planet Math makes learning engaging, rewarding, and memorable. Game Modes and Features Story Mode - Choose Your Journey Adventurer - Learn core math fundamentals Superhero - Improve speed and accuracy Brainiac - Solve advanced problems and strategies Mastermind - The ultimate math challenge Learn and Improve Over 60 unique math problem types Covers Arithmetic, Fractions, Algebra, Geometry, and Calculus Suitable for elementary, middle school, high school, and beyond Compete and Play Online Battle AI or players worldwide Private rooms for classrooms, friends, or practice Global leaderboards, achievements, and badges Immersive Gameplay Hand-drawn visuals Energetic techno and EDM soundtrack by DJ & Producer David Techno BlaDe Fast, responsive, and engaging play Why Parents and Teachers Love Planet Math Teacher-approved educational design Encourages focus, problem-solving, and confidence Turns math practice into a game kids actually enjoy Become a Math Champion Whether you are practicing for school, sharpening your skills, or just having fun, Planet Math is an effective and enjoyable way to learn math through play. Get Ready to Battle with Math FIGHTER From its roots on the Microsoft Xbox 360 to this new and upgraded version, Math FIGHTER! delivers a non-stop, adrenaline-pumping math adventure like never before! With six lively characters and over 60 mind-bending problem types, you’ll embark on a journey filled with epic math battles, electrifying techno beats, and infinite learning possibilities! STORY MODE – CHOOSE YOUR CHAMPIONSHIP! Embark on an epic journey through four thrilling championships: Adventurer – Start your quest and prove your skills in daring math duels! Superhero – Power up your problem-solving abilities and become a math hero! Brainiac – Outsmart your opponents with advanced strategies and rapid calculations! Mastermind – The ultimate test of logic, speed, and mastery—only the best will survive! COMPETE, CONQUER & BECOME A MATH LEGEND! Battle AI-controlled Widgets, challenge friends, or take on the WORLD online! Solve math puzzles across space and time while jamming to HOT Techno Beats! Level up your math skills—from elementary arithmetic to advanced Algebra, Geometry, and Calculus! GO ONLINE & SHOW YOUR SKILLS! Jump into real-time online battles with players across the globe! Private rooms for classroom learning, friends, or competitive showdowns! Pick your country’s flag and rise to the top as the ultimate math warrior! TRAIN SOLO & MASTER THE MATH LORD! Dominate thrilling single-player stages with hand-drawn designs & a killer EDM soundtrack! Unlock all 14 badges and claim your title as a Mathematical Superstar! MATH HAS NEVER BEEN THIS FUN! Math FIGHTER! isn’t just a game—it’s a brain-boosting, skill-building, action-packed adventure that makes learning math fun, fast, and unforgettable! Whether you're sharpening your skills, bonding with friends over lunch, or gearing up for a classroom showdown, this is the ULTIMATE way to master math! FEATURES Over 60 unique math challenges! All skill levels covered—Basic, Intermediate & Advanced! Fractions, Algebra, Geometry, Calculus & more! Fast-paced, competitive, and wildly entertaining! Constant updates & new features based on player feedback! NOTE: And we are always adding more so feel free to let us know what your favorite is with great feedback to boot! *we are not responsible for dinner-time mayhem Ready to put your math skills to the test? Download Math FIGHTER! now and become a math champion!

About

Cosuki

Read full description

Learn Algebra. Actually Understand It. Cosuki is an algebra learning app built around one simple idea: understanding comes before memorization. Learn the concept. Follow a worked example. Practice it yourself. Then prove you’ve mastered it. From variables and expressions to the Grand Trial, Cosuki takes you through 10 carefully structured chapters covering inequalities, coordinate geometry, systems of equations, exponents, polynomials, quadratics, functions, and more. LEARN WITH PURPOSE Every chapter starts with clear concept guides that explain the rule, demonstrate a worked problem, and walk you through the reasoning behind every step. Then it’s your turn. Complete practice missions, build confidence, and finish with mastery tests designed to make sure the concept actually stuck. Each chapter includes 22 missions and 110 questions. When you make a mistake, Cosuki doesn’t just mark it wrong. It explains what happened and helps you understand the solution. When you’re stuck, hints help you move forward without simply giving away the answer. EARN YOUR PROGRESS Learning is the journey. The treasures are the proof. Complete chapters to collect 10 hand-painted rewards, from the Scholar Headband to the Grand Trial Armor. Equip your favorites and make your journey your own. HEARTS THAT ENCOURAGE CARE You start with five hearts. A wrong answer costs one, and hearts replenish automatically. They aren't here to punish mistakes. They’re a small reminder to slow down, read carefully, and think before you answer. PRIVATE BY DESIGN Cosuki is built to respect your privacy from the ground up. No ads. No subscriptions. No account. No sign-up. No email address. No analytics. No tracking. No advertising identifiers. There is no Cosuki server collecting your personal information. Your progress stays on your device and is backed up through your own Apple account. Reinstall the app without losing your progress. And because your lessons are stored locally, Cosuki works completely offline. Your learning belongs to you. START FOR FREE Chapters 1 and 2 are completely free. That’s 44 missions and 220 questions with no time limit, no trial, and no credit card required. When you’re ready for the full journey, Cosuki Plus unlocks the remaining eight chapters with a one-time $4.99 purchase COSUKI PLUS • All 10 chapters • 7 hearts instead of 5 • 3 hints per mission instead of 1 • One-time purchase • No subscription • No recurring charges Buy it once. Keep it forever. No subscriptions. No renewals. No surprises. THE GRAND TRIAL AWAITS Start with the fundamentals. Build your understanding one idea at a time. Master the concepts. Then prove how far you’ve come. Welcome to Cosuki.

Screenshots

Planet Math4 screens
Cosuki4 screens

Verdict

The call

The clearest difference is ads: Cosuki at none against Planet Math's shown. Cosuki also leads on iOS requirement (13.0 vs 15.0). On price, update cadence, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Planet Math sells 7 in-app purchases, starting at $2.00 per month and Cosuki sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Planet Math ships an update every 2 weeks, Cosuki weekly. The most recent releases landed on October 25, 2026 and October 26, 2026 respectively.

Scorecard2 real differences · 8 level
Planet Math versus Cosuki: the parameters behind the verdict, then further details
ParameterPlanet MathCosuki
PriceFreeFree
Rating4.8 (13 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings13 — better—
Update frequencyEvery 2 weeksWeekly — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size583 MB40 MB
Age rating4+4+
DeveloperFezba Interactive IncKhuselbayar Enkhmunkh

In-app purchases

7 purchases

Planet Math

Subscriptions4
  • One Month Pack$2.001 Month
  • Three Month access$4.003 Months
  • Six months of Premium Access$6.006 Months
Show 1 more
  • Twelve month Premium Access$8.001 Year
One-time3
  • Silver Support$1.99
  • Gold Support$4.99
  • Platinum Support$14.99
1 purchases

Cosuki

One-time1
  • Cosuki Plus$4.99

Questions

Is Planet Math free?
Planet Math is free to download, with in-app purchases available.
Is Cosuki free?
Cosuki is free to download, with in-app purchases available.
Do Planet Math or Cosuki have ads?
Planet Math shows ads; Cosuki does not.
Which is updated more often, Planet Math or Cosuki?
Planet Math ships an update every 2 weeks, and Cosuki weekly. Most recently, Planet Math was updated on October 25, 2026 and Cosuki on October 26, 2026.

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