Comparison

Stack the States® vs Math Facts Ninja

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®

Learn about the 50 US states through a fun and interactive game. Collect all states, unlock bonus games, and master capitals, shapes, flags, and more. This app makes geography engaging for all ages.

Highlights
  • Learn state capitals, shapes, and flags
  • Interactive drag-and-drop gameplay
  • Collect all 50 states on a personalized map
  • Unlock four bonus educational games
  • Hundreds of unique questions
  • Create multiple player profiles
Features
Read full description

Stack the States® makes learning about the 50 states fun! Watch the states actually come to life in this colorful and dynamic game! As you learn state capitals, shapes, geographic locations, 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 random 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 four free bonus games: Map It, Pile Up, Puzzler and Capital Drop. Four games in one! HAVE FUN LEARNING ALL ABOUT THE 50 STATES: ▸ Capitals ▸ State shapes ▸ Abbreviations ▸ Bordering states ▸ Location on the map ▸ Nicknames ▸ Flags ...and more! FEATURES: ▸ Hundreds of unique questions ▸ Interactive map and 50 state flash cards ▸ Choose any of the 50 friendly-looking states as your avatar ▸ Create up to six player profiles ▸ Collect all 50 states and track your progress on a personalized map ▸ Earn FREE bonus games: Map It, Pile Up, Puzzler and Capital Drop ▸ High resolution pictures of famous US landmarks ▸ All games are powered by a realistic physics engine ▸ Fun sound effects and music ▸ iPhone 4 and new iPad Retina Display support ▸ Works on both iPhone and iPad - a universal app FIVE GAMES IN ONE: STACK THE STATES: Build tall piles with states and try to reach the checkered line. MAP IT: Tap the location of the selected state on the map. Try to complete the whole country. PILE UP: The states are piling up! Tap them quickly to get rid of them before they pile too high. PUZZLER: Sit back and relax as you slide the states around and put them together like a jigsaw puzzle. CAPITAL DROP: Match states with their capitals in this fast-paced bonus game. Don't let a state fall! Stack the States® is an educational app for all ages that's actually FUN to play. Try it now and enjoy five games for the price of one! PRIVACY DISCLOSURE Stack the States®: - 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 LinkShare). For more information on our privacy policy please visit: http://dan-russell-pinson.com/privacy/

About

Math Facts Ninja

Master essential math skills with engaging games. Practice addition, subtraction, multiplication, and division through fun, ninja-themed challenges. Progress through belt levels to improve fluency and accuracy.

Highlights
  • Addition, Subtraction, Multiplication, Division practice
  • Three distinct math games
  • Eight belt levels of difficulty
  • Math Facts Dojo for focused practice
  • Improves math fluency
  • Fun alternative to flash cards
Features
Currently charting
Read full description

Math Facts Ninja is a math game for kids (and adults) to improve basic math fact skills including Addition facts, Subtraction facts, Multiplication facts and Division facts. Looking for multiplication games to make learning math facts more fun then simple multiplication flash cards? Not your standard math flash cards game, Math Facts Ninja uses three math games to test your "ninja-like-skills" as you try to earn your black belt in each ninja skill. These skills include Sword, Throwing Stars and Hands. As you progress though the eight belt levels of each skill you are challenged with increasingly difficult math problems designed to improve your mastery of Math Facts in addition, subtraction, multiplication and division (+-x÷). Features in Math Games: • Math Facts, Math Drills and Math Games • Common Core 3.OA.C.7 • Operations & Algebraic Thinking • Multiply and divide within 100 • STEM math basics • More Fun than Math Facts Flash Cards • Learn & Practice Times Tables Game • Learn & Practice Addition Game • Learn & Practice Subtraction Game • Learn & Practice Division Game • Math Facts Dojo to practice your math fluency • Fun ninja math facts games and math drills • Way more fun then simple math flash cards Math Facts Dojo: In the Math Facts Ninja Dojo (practice room), you can practice specific number sets and arithmetic operations. Hone your skills as you focus on the areas you want to improve upon. You get to decide the Math Game and the Number Set as well as the number of math questions you want. Practicing your times tables has never been so much fun! Math Facts Ninja is the perfect study app for students in grades 3 to 6, or anyone wanting to improve their general math facts skills. Math Facts Ninja offers multiple levels of difficulty, represented as belt levels, in a fun game environment. The more you play the more your math facts fluency will improve. Math Facts Ninja helps improve your math fluency in a fun, self—paced, game environment. Three different ninja-like games offer eight stages of difficulty culminating in the ultimate prize, a Black Belt! Earn a black belt for each ninja skill.

Screenshots

Stack the States®4 screens
Math Facts Ninja4 screens

Verdict

The call

The clearest difference is rating: Stack the States® at 4.4 against Math Facts Ninja's 3.9. Stack the States® also leads on update cadence (every 3 months vs every 13 months) and review sentiment (91% vs 71%). Math Facts Ninja's advantage is price ($0.99 vs $2.99). On ads, in-app purchases, device support and iOS requirement 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® costs $2.99 and Math Facts Ninja $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Stack the States® holds the better App Store score, 4.4 against 3.9. That said, the two scores are not equally well evidenced: Stack the States® has 2.2K ratings behind it against 158, so its average is the more settled of the two. Written reviews point the same way: 91% of Stack the States®'s written reviews are positive against 71% of Math Facts Ninja's.

UpkeepUpdate frequency

Stack the States® ships an update every 3 months, Math Facts Ninja every 13 months. The most recent releases landed on October 21, 2026 and October 20, 2026 respectively.

Scorecard7 real differences · 4 level
Stack the States® versus Math Facts Ninja: the parameters behind the verdict, then further details
ParameterStack the States®Math Facts Ninja
Price$2.99$0.99 — better
Rating4.4 (2.2K ratings) — better3.9 (158 ratings)
Positive reviews90.8% of reviews — better71.4% of reviews
Number of ratings2.2K — better158
Update frequencyEvery 3 months — betterEvery 13 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
Best chart rank#9 — better#156
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.012.0
Further details — not scored
Size99 MB54 MB
Age rating4+4+
DeveloperFreecloud Design, Inc.ecom enterprises, inc.

Customer experience

Stack the States®

All ratings2,189 ratings
Positive85.6%
Neutral5.0%
Negative9.4%
Written reviews195 reviews
Positive90.8%
Neutral2.6%
Negative6.7%

Math Facts Ninja

All ratings158 ratings
Positive70.3%
Neutral8.9%
Negative20.9%
Written reviews49 reviews
Positive71.4%
Neutral8.2%
Negative20.4%

User reviews

Stack the States®

From 2.2K App Store ratings

What we love

  • 👍 No ads/tracking
  • 👍 Fun and educational
  • 👍 Helpful for learning states
  • 👍 Nostalgic/childhood game
  • 👍 Great for all ages

Room to improve

  • 🐛 Capital drop glitch
  • 🔍 Needs more content after completing all states
  • 🔍 Difficulty level may be too high for younger kids

Math Facts Ninja

From 158 App Store ratings

What we love

  • 👍 Fun and engaging for kids
  • 💡 Effective for learning math facts
  • 👍 Simple and not complicated
  • 👍 Helps improve math skills
  • 👍 Kids look forward to playing

Room to improve

  • 🐛 Buggy controls
  • 🐛 Inconsistent answer recognition
  • 🐛 Some mini-games have issues
  • 🐛 Game can become boring
  • 🐛 Limited customization options

Bugs and requests

Stack the States®

Reported bugs

2 issues
  • Washington state mapping issue
  • Battery drain when app returns to home screen

Requested features

7 requests
  • Ability to view completed states again
  • Add more state facts/trivia
  • Include background photos related to states
  • Add a country-wide puzzle mode
  • Option to turn off state faces
Show 2 more
  • Add more mini-games
  • Ability to transfer progress between devices

Math Facts Ninja

Reported bugs

5 issues
  • Throwing star bug (only goes side to side)
  • Red X appears for correct answers in mini-games
  • App closes when using ninja stars
  • Inaccurate answer recognition when swiping
  • Tap screen is broken

Requested features

13 requests
  • Fix bug on throwing star
  • Allow selection of multiple numbers and operations
  • Add parental control
  • Bigger number problems for older kids
  • Tweak range of math problems (e.g., only multiplication/division for '2s')
Show 8 more
  • Add coins for a shop
  • Set max sum instead of fixed limit
  • More action and variety
  • Character celebration for black belt
  • Option to lessen the amount of problems
  • Change background
  • Improve controls
  • Add more content

In-app purchases

None

Stack the States®

No in-app purchases

None

Math Facts Ninja

No in-app purchases

Questions

Is Stack the States® free?
Stack the States® costs $2.99, with no in-app purchases.
Is Math Facts Ninja free?
Math Facts Ninja costs $0.99, with no in-app purchases.
Which has better reviews, Stack the States® or Math Facts Ninja?
Stack the States® is rated higher. Stack the States® averages 4.4 out of 5 from 2.2K ratings, while Math Facts Ninja averages 3.9 from 158 ratings.
Do Stack the States® or Math Facts Ninja have ads?
Neither Stack the States® nor Math Facts Ninja shows ads.
Which is updated more often, Stack the States® or Math Facts Ninja?
Stack the States® ships an update every 3 months, and Math Facts Ninja every 13 months. Most recently, Stack the States® was updated on October 21, 2026 and Math Facts Ninja on October 20, 2026.
Which is more popular, Stack the States® or Math Facts Ninja?
Stack the States® currently peaks at #9 in the App Store charts, and Math Facts Ninja at #156. Chart position reflects recent download velocity rather than total install base.

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