Comparison

Osmo Math Buzz vs Kahoot! Big Numbers

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

Head to head
About

Osmo Math Buzz

Engage in collaborative math practice with up to four players, solving equations to overcome challenges and collect rewards. Designed for children aged 6-10, this app transforms screen time into hands-on learning through interactive play.

Highlights
  • Team-based math practice
  • Addition, subtraction, multiplication
  • Collaborative play
  • Hands-on learning system
  • Ages 6-10
  • Tangible play with digital learning
Read full description

With your team of up to 4 players, solve math equations to get past unfriendly bugs and collect all of the honey in the garden. TEAM UP TO PRACTICE YOUR MATH SKILLS Practice addition, subtraction, multiplication and teamwork with a friend! EXPLORE CORE LEARNING SUBJECTS THROUGH PLAY Designed for children ages 6-10 to build skills through fun collaborative play. TURN SCREEN TIME INTO LEARNING TIME Osmo’s unique technology transforms your tablet into a hands-on learning system! *Play your favourite Osmo Math Buzz on both iPhone and iPad! Use your iPhone with the Osmo Base for iPad and Numbers tiles - each can be found at playosmo.com. * Please see our device compatibility list here: https://support.playosmo.com/hc/articles/115010156067 *Requires the Osmo Base for iPad and Numbers tiles. Each sold separately or as part of Osmo Genius Starter Kit. Learn more by visiting www.playosmo.com. ABOUT OSMO -- 21ST CENTURY PLAY AND LEARNING Osmo combines healthy screen time and tangible play to make learning engaging and fun. Every Osmo game uses physical action and reflective artificial intelligence technology for digital learning in the real world. Help your child become more confident, thoughtful, and creative with Osmo.

About

Kahoot! Big Numbers

This game makes learning about large numbers and arithmetic engaging for children. Players embark on an adventure, using addition and subtraction to manage resources and progress through worlds. It offers over 10 hours of gameplay with no reading required.

Highlights
  • Master long addition and subtraction
  • Base-ten system learning
  • Adventure-based gameplay
  • Over 10 hours of content
  • No reading required
  • Collect and trade resources
  • Furnish and decorate houses
Features
Read full description

Kahoot! Big Numbers by DragonBox is an award-winning math learning game that makes it easy for kids to master the math behind BIG numbers. Kids as young as 6 can learn how the base-ten system works and how to perform long additions and subtractions. **REQUIRES A SUBSCRIPTION** Access to the contents and functionality of this app requires a subscription to Kahoot! Kids. The subscription starts with a 7 day free trial and can be cancelled at any time before the end of the trial. The Kahoot! Kids subscription gives your family access to premium Kahoot! features and 3 award-winning learning apps for math and reading. HOW THE GAME WORKS Kahoot! Big Numbers by DragonBox takes your child on an adventure to the magical land of Noomia. Your child will have to gather and trade resources to acquire new items and unlock new worlds. To advance in the game, your child must add and subtract to manage their resources. Over the course of the game, quantities will get larger and operations will get harder. Your child will have to perform 1000s of operations and gain complete mastery of long additions and subtractions to complete the game. FEATURES - An innovative interface that makes solving long additions and subtractions easy - An infinite amount of additions and subtractions to solve. - Over 10 hours of engaging gameplay - No reading required - 6 worlds to explore - Learn to count in different languages - 10 Different resources to collect and trade - 4 Noom houses to furnish and decorate - No third-party advertising - No in-app purchases Kahoot! Big Numbers by DragonBox is based on the same pedagogical principles as the other games in the award-winning DragonBox series, and works by integrating the learning seamlessly into the gameplay, no quizzes or mindless repetitions. Every interaction in Kahoot! Big Numbers by DragonBox is designed to heighten your child’s understanding of mathematics while motivating them to keep learning through play and exploration. Terms and Conditions: https://kahoot.com/terms-and-conditions/ Privacy Policy https://kahoot.com/privacy-policy/

Screenshots

Osmo Math Buzz4 screens
Kahoot! Big Numbers4 screens

Verdict

The call

The clearest difference is rating: Kahoot! Big Numbers at 4.6 against Osmo Math Buzz's 3.0. Kahoot! Big Numbers also leads on review sentiment (49% vs 13%) and ratings volume (1.6K vs 143). Osmo Math Buzz's advantage is monetization model (free with in-app purchases vs subscription). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Osmo Math Buzz sells 2 one-off in-app purchases and Kahoot! Big Numbers sells 3 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Kahoot! Big Numbers holds the better App Store score, 4.6 against 3.0. That said, the two scores are not equally well evidenced: Kahoot! Big Numbers has 1.6K ratings behind it against 143, so its average is the more settled of the two. Written reviews point the same way: 13% of Osmo Math Buzz's written reviews are positive against 49% of Kahoot! Big Numbers's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 27, 2026 and October 30, 2026 respectively.

Scorecard4 real differences · 6 level
Osmo Math Buzz versus Kahoot! Big Numbers: the parameters behind the verdict, then further details
ParameterOsmo Math BuzzKahoot! Big Numbers
PriceFreeFree
Rating3.0 (143 ratings)4.6 (1.6K ratings) — better
Positive reviews13.3% of reviews48.9% of reviews — better
Number of ratings1431.6K — better
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterSubscription
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size264 MB361 MB
Age rating4+4+
DeveloperTangible PlayKahoot ASA

Customer experience

Osmo Math Buzz

All ratings143 ratings
Positive45.5%
Neutral11.9%
Negative42.7%
Written reviews45 reviews
Positive13.3%
Neutral13.3%
Negative73.3%

Kahoot! Big Numbers

All ratings1,625 ratings
Positive90.6%
Neutral4.7%
Negative4.7%
Written reviews45 reviews
Positive48.9%
Neutral6.7%
Negative44.4%

User reviews

Osmo Math Buzz

From 143 App Store ratings

What we love

  • 👍 Fun and engaging gameplay
  • 💡 Teaches numbers and strategy
  • 🤝 Good for multiplayer
  • 💰 Nice price (for some)
  • 🧠 Challenges children

Room to improve

  • 🐛 Freezes on startup
  • 🐛 App won't load
  • 🐛 Crashes mid-game
  • 🐛 Progress lost on crash
  • 🐛 Unreliable login

Kahoot! Big Numbers

From 1.6K App Store ratings

What we love

  • 👍 Math made fun
  • 🚀 Great game
  • 🚀 Something about apples
  • 🚀 It's Soo Magical!
  • 🚀 Kahoot! is the best

Room to improve

  • 🐛 If you let the subscription lapse, your child will lose all their progress
  • 🐛 u cant draw 4
  • 🐛 Not challenging enough. Can only trial with annual subscription
  • 💡 In app purchases are the worst :(
  • 🐛 Have to pay.

Bugs and requests

Osmo Math Buzz

Reported bugs

10 issues
  • App freezes on Osmo logo
  • App does not load
  • App crashes during gameplay
  • Lost progress after crashes
  • Login issues and purchase restoration problems
Show 5 more
  • Reader not recognizing tiles
  • Screen freezes after selecting base
  • App not loading past white Osmo screen
  • Progress data disappeared
  • IAP unlock button not working

Requested features

8 requests
  • Fix the app loading issue
  • Improve app stability
  • Make the game more engaging
  • Provide clearer instructions
  • Ensure progress is saved
Show 3 more
  • Make trial cancellation easier
  • Address wasp behavior randomness
  • Update app for current devices

Kahoot! Big Numbers

Reported bugs

4 issues
  • Maalesef ⭐️⭐️⭐️
  • Madenci bölümünde ilerlenmiyor
  • Login screen freezes
  • Incompatible with older devices

Requested features

4 requests
  • Maalesef ⭐️⭐️⭐️
  • Madenci bölümünde ilerlenmiyor
  • Dark mode option
  • Advanced analytics dashboard

In-app purchases

2 purchases

Osmo Math Buzz

One-time2
  • 3-day trial of Math BuzzFree
  • Unlock Math Buzz$24.99
3 purchases

Kahoot! Big Numbers

Subscriptions2
  • Kahoot! Kids Monthly$5.991 Month
  • Kahoot! Kids Annual7 Days trial$35.991 Year
One-time1
  • One-time Purchase$19.99

Questions

Is Osmo Math Buzz free?
Osmo Math Buzz is free to download, with in-app purchases available.
Is Kahoot! Big Numbers free?
Kahoot! Big Numbers is free to download, with in-app purchases available.
Which has better reviews, Osmo Math Buzz or Kahoot! Big Numbers?
Kahoot! Big Numbers is rated higher. Osmo Math Buzz averages 3.0 out of 5 from 143 ratings, while Kahoot! Big Numbers averages 4.6 from 1.6K ratings.
Do Osmo Math Buzz or Kahoot! Big Numbers have ads?
Neither Osmo Math Buzz nor Kahoot! Big Numbers shows ads.
Which is updated more often, Osmo Math Buzz or Kahoot! Big Numbers?
Osmo Math Buzz ships an update every 2 months, and Kahoot! Big Numbers every 2 months. Most recently, Osmo Math Buzz was updated on October 27, 2026 and Kahoot! Big Numbers on October 30, 2026.

Other comparisons