Comparison

Stack the States® 2 vs Operation Math Game

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

Head to head
About

Stack the States® 2

Learn US geography by stacking animated states to win levels. Collect all 50 states to unlock bonus games and explore an interactive 3D map with detailed information about capitals, cities, and landmarks. Designed for fun and educational play for all ages.

Highlights
  • Interactive 3D map
  • Learn state capitals, cities, shapes, landmarks, and flags
  • Collect all 50 states
  • Unlock bonus games (Map It, Connect 2, Capital Tap)
  • Voice mode for independent play
  • Hundreds of unique questions
  • Multiple player profiles
Features
Currently charting
Read full description

Watch the states come to life as you learn US geography! Stack the States® is back and better than ever with new question types, new bonus games, voice mode, 3D graphics and a detailed interactive map! As you learn state capitals, cities, shapes, landmarks, flags and more, you can actually touch, move and drop the animated states anywhere on the screen. Carefully build a stack of states that reaches the checkered line to win each level. You earn a new state for every successfully completed level. All of your states appear on your own personalized map of the United States. Try to collect all 50! As you earn more states, you begin to unlock the free bonus games: Map It, Connect 2 and Capital Tap. Four games in one! What’s new in Stack the States® 2: - New question types - New bonus games: Connect 2 and Capital Tap - New voice mode that helps non-readers play independently - Brand new interactive map featuring major cities and a 3D elevation view of each state - Beautiful 3D graphics - 10 different 3D scenes depicting various locations in the US - 3D models of over 90 US landmarks Plus, all the great features that you loved from the original Stack the States®: - 50 flash cards — one for each state - Hundreds of unique questions - Up to six player profiles - A personalized map of the US - Fun sound effects and music - Works on both iPhone and iPad - a universal app Stack the States® 2 is an educational app for all ages that's actually FUN to play. Try it now and enjoy four games for the price of one! PRIVACY DISCLOSURE Stack the States® 2: - Does not contain 3rd party ads. - Does not contain in-app purchases. - Does not contain integration with social networks. - Does not use 3rd party analytics / data collection tools. - Does include links to apps by Dan Russell-Pinson in the iTunes App Store (via Performance Horizon). For more information on our privacy policy please visit: http://dan-russell-pinson.com/privacy/

About

Operation Math Game

Embark on a global learning adventure with this award-winning game that turns math drills into exciting missions. Players can defeat villains, earn spy gear, and master addition, subtraction, multiplication, and division through over 100 timed challenges.

Highlights
  • 105 timed missions
  • Selectable math operations
  • Customizable player profiles
  • Unlockable spy gear rewards
  • Supports iPad, iPhone, and Mac
  • Fun spy-themed learning
Read full description

Defeat Dr. Odd and earn the latest spy gear in the award-winning game that transforms math drills into a global learning adventure. From the streets of Paris to the pyramids of Egypt, Operation Math includes more than 100 timed missions that help players learn addition, subtraction, multiplication and division. Play it for fun or use in the classroom as an awesome supplement to homework and traditional flash card drills. "This app is definitely fun. … Thanks to its game features, adults may find Operation Math a great way to brush up on their own skills." — The New York Times Features: • An all-new version of our Original math adventure. • 105 exciting missions with selectable math operations and skill levels. • 30 different watches and uniforms that players can win by solving math problems. • Ready for iPad, iPhone and Mac (keyboards too) • Training runs that help novice agents prepare for future missions. • The ability to create five custom player profiles on the same device. • Fun spy-themed action that provides a fun alternative to homework and flashcards. • Great basic math quiz or test prep for any grade level. • Comic art by Mason Hutton. • No ads or in-app purchases. Awards & Recognition • Parents' Choice Award Winner • Best App for Teaching and Learning — American Association of School Librarians • Featured in Apple's Apps for Every Grade Crafted by Little 10 Robot. We believe that smiling is the first step in learning. That’s why we make educational apps loaded with serious fun.

Screenshots

Stack the States® 24 screens
Operation Math Game4 screens

Verdict

The call

The clearest difference is ratings volume: Stack the States® 2 at 1.1K against Operation Math Game's 8. Stack the States® 2 also leads on update cadence (every 9 months vs every 25 months) and chart position (#56 vs unranked). On price, rating, 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

Stack the States® 2 costs $2.99 and Operation Math Game $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.5 for Stack the States® 2 against 4.5 for Operation Math Game. That said, the two scores are not equally well evidenced: Stack the States® 2 has 1.1K ratings behind it against 8, so its average is the more settled of the two. Written reviews are what separate them: 86% of Stack the States® 2's written reviews are positive against 75% of Operation Math Game's.

UpkeepUpdate frequency

Stack the States® 2 ships an update every 9 months, Operation Math Game every 25 months. The most recent releases landed on November 11, 2026 and November 3, 2026 respectively.

Scorecard4 real differences · 7 level
Stack the States® 2 versus Operation Math Game: the parameters behind the verdict, then further details
ParameterStack the States® 2Operation Math Game
Price$2.99$2.99
Rating4.5 (1.1K ratings) — better4.5 (8 ratings)
Positive reviews86.4% of reviews — better75.0% of reviews
Number of ratings1.1K — better8
Update frequencyEvery 9 months — betterEvery 25 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
Best chart rank#56 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS12.012.0
Further details — not scored
Size140 MB276 MB
Age rating4+4+
DeveloperFreecloud Design, Inc.Little 10 Robot

Customer experience

Stack the States® 2

All ratings1,144 ratings
Positive87.4%
Neutral4.5%
Negative8.1%
Written reviews140 reviews
Positive86.4%
Neutral7.1%
Negative6.4%

Operation Math Game

All ratings8 ratings
Positive87.5%
Neutral0.0%
Negative12.5%
Written reviews4 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

In-app purchases

None

Stack the States® 2

No in-app purchases

None

Operation Math Game

No in-app purchases

Questions

Is Stack the States® 2 free?
Stack the States® 2 costs $2.99, with no in-app purchases.
Is Operation Math Game free?
Operation Math Game costs $2.99, with no in-app purchases.
Which has better reviews, Stack the States® 2 or Operation Math Game?
Stack the States® 2 is rated higher. Stack the States® 2 averages 4.5 out of 5 from 1.1K ratings, while Operation Math Game averages 4.5 from 8 ratings.
Do Stack the States® 2 or Operation Math Game have ads?
Neither Stack the States® 2 nor Operation Math Game shows ads.
Which is updated more often, Stack the States® 2 or Operation Math Game?
Stack the States® 2 ships an update every 9 months, and Operation Math Game every 25 months. Most recently, Stack the States® 2 was updated on November 11, 2026 and Operation Math Game on November 3, 2026.

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