Comparison

Stack the Countries® vs Solar System for kids

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

Head to head
About

Stack the Countries®

Learn world geography through a fun, interactive game. Stack animated countries by answering questions about capitals, landmarks, and locations. Collect all countries and unlock bonus games for a comprehensive learning experience.

Highlights
  • Learn country capitals, landmarks, and locations
  • Build stacks of countries to win levels
  • Collect all 193 countries
  • Unlock bonus games: Map It! and Pile Up!
  • Focus on specific continents or the whole world
  • 193 country flash cards and interactive maps
  • Play in English, Spanish, and French
Features
Read full description

- Featured on the TODAY show! - Editor's Choice Award! - Children's Technology Review - "Stack the Countries is worth every penny and this is an educational purchase that you absolutely will not regret." - The iPhone Mom Stack the Countries® makes learning about the world fun! Watch the countries actually come to life in this colorful and dynamic game! As you learn country capitals, landmarks, geographic locations and more, you can actually touch, move and drop the animated countries anywhere on the screen. Carefully build a stack of countries that reaches the checkered line to win each level. You earn a random country for every successfully completed level. All of your countries appear on your own personalized maps of the continents. Try to collect all 193! As you earn more countries, you begin to unlock the free bonus games: Map It! and Pile Up! Three games in one! CONTROL YOUR OWN EXPERIENCE: You can choose to focus on just one specific continent or play the whole world. You can also select which types of questions are asked. LEARN BEFORE YOU PLAY: Stack the Countries provides 193 country flash cards and colorful interactive maps of the continents. Use them to brush up on your world geography before you play or as a handy reference tool. HAVE FUN LEARNING ALL ABOUT THE COUNTRIES OF THE WORLD: ▸ Capitals ▸ Landmarks ▸ Major Cities ▸ Continents ▸ Border Countries ▸ Languages ▸ Flags ▸ Country Shapes FEATURES: ▸ More than 1000 unique questions ▸ 193 flash cards -- one for each country! ▸ Interactive maps of the continents ▸ Collect all 193 countries and track your progress on personalized maps ▸ Earn FREE bonus games: Map It! and Pile Up! ▸ Play in English, Spanish and French ▸ Works on both iPhone and iPad - a universal app ▸ Create up to six player profiles ▸ Choose any of the friendly-looking countries as your avatar ▸ High resolution pictures of famous world landmarks ▸ All games are powered by a realistic physics engine ▸ Fun sound effects and music ▸ iPhone 4 Retina Display support THREE GAMES IN ONE: STACK THE COUNTRIES: Build tall piles of countries and try to reach the checkered line. MAP IT: Tap the location of the selected country on the map. Try to complete the whole continent! PILE UP: The countries are piling up! Identify and tap them quickly to get rid of them before they reach the top. Stack the Countries® is an educational app for all ages that's actually FUN to play. Try it now and enjoy three games for the price of one! PRIVACY DISCLOSURE: Stack the Countries®: - 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

Solar System for kids

This app introduces children aged 2 and up to the solar system through interactive games and puzzles. It offers various learning modes, including memory challenges, word tracing, and spelling activities, to make learning about planets and space engaging and fun.

Highlights
  • Interactive planet games
  • Memory puzzles
  • Word tracing and spelling
  • Educational videos
  • Immersive graphics
  • Galaxy learning
Features
Read full description

Solar System for kids is comprehensive introduction to space and Solar system and all that is in it for children age 2 and above. Are you looking for a simple and easy to use Solar system for kids galaxy learning app? Will you like to help your little one learn all about the planet system? If that is the case, this fun learning app is here for you. As one of the best kids educational apps, this app offers you multiple interactive learning modes featuring memory puzzles, word tracers, spelling levels, word puzzles and more. Let your kid learn new words and learn all about the planet system by playing a range of immersive planet games for kids. On this app, you can not only find games but also view the educational videos, spelling contests, immersive graphics and more for fast learning experience. Try Solar System for Kids – Learn Astronomy now! Immersive Galaxy Learning for Kids Galaxy learning is an important part of exposing children to conventional science knowledge through unconventional means. Prepare your little one for the upcoming learning years by letting him play planet games and learn all about the planet system. This interactive learning app offers games, puzzles, dictation, memory game, puzzle games and more planet games to help kids learn about the solar system’s science without getting bored. Fun and Interactive Learning Experience Forget the boring learning experience offered by other kid’s educational apps and count on this app to offer an immersive learning experience. Instead of wasting your kid’s time and energy on meaningless game, engage your tot in fun learning about planet system as available in this app. The kid can learn new words, understand the components of planet system and watch educational videos to improve learning. Multiple Planet System Game Modes What’s better than learning things and testing them on the spot? With this immersive planet games app, you get to experience the pleasure of fun learning and effectiveness of on spot evaluation for an improved learning experience. Learn about planet system in the most efficient manner and engage in different planet games for matchless interactive learning experience. Kids can play games, solve puzzles, learn new words and learn spellings very quickly by playing this game. Learn new Words and Concepts easily Planet system and galaxy learning is made easier than ever with this fun learning app. Instead of getting overwhelmed by new concepts, kids get to learn kid’s educational apps games and spend quality learning time without getting bored. Learn new words and concepts easily by watching videos and performing activities available in this planet learning app. Features of Solar System for Kids – Learn Astronomy • Simple and easy to use kid’s educational apps UI/UX • Interactive learning brought by fun planet games • Multiple interactive learning games, puzzles, spelling quizzes and more • Learn new words in planet games and enjoy immersive learning • Learn all about the planet system with this galaxy learning app • Watch educational videos/pictures and play planet games Download and play Solar System for Kids – Learn Astronomy today! For more information, kindly check our website. www.kokotots.com

Screenshots

Stack the Countries®4 screens
Solar System for kids4 screens

Verdict

The call

The clearest difference is price: Solar System for kids at Free against Stack the Countries®'s $2.99. Solar System for kids also leads on update cadence (every 2 months vs every 6 months). Stack the Countries®'s advantage is in-app purchases (none vs 1) and review sentiment (92% vs 59%). On rating, ads, 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

Solar System for kids is free to download; Stack the Countries® costs $2.99 up front. Solar System for kids sells 1 one-off in-app purchase. Stack the Countries® asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for Stack the Countries® against 4.5 for Solar System for kids. Both are backed by a comparable volume of ratings — 1K and 245 respectively. Written reviews are what separate them: 92% of Stack the Countries®'s written reviews are positive against 59% of Solar System for kids's.

UpkeepUpdate frequency

Stack the Countries® ships an update every 6 months, Solar System for kids every 2 months. Both last shipped on October 23, 2026.

Scorecard7 real differences · 4 level
Stack the Countries® versus Solar System for kids: the parameters behind the verdict, then further details
ParameterStack the Countries®Solar System for kids
Price$2.99Free — better
Rating4.6 (1K ratings) — better4.5 (245 ratings)
Positive reviews91.5% of reviews — better59.1% of reviews
Number of ratings1K — better245
Update frequencyEvery 6 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
Best chart rank#9 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.012.0
Further details — not scored
Size132 MB160 MB
Age rating4+4+
DeveloperFreecloud Design, Inc.Kokotots

Customer experience

Stack the Countries®

All ratings1,031 ratings
Positive89.1%
Neutral4.1%
Negative6.8%
Written reviews343 reviews
Positive91.5%
Neutral2.9%
Negative5.5%

Solar System for kids

All ratings242 ratings
Positive87.2%
Neutral2.9%
Negative9.9%
Written reviews22 reviews
Positive59.1%
Neutral9.1%
Negative31.8%

User reviews

Stack the Countries®

From 1K App Store ratings

What we love

  • 👍 Excellent educational game
  • 🤩 Fun and engaging
  • 🧠 Helps improve geography knowledge
  • 👨‍👩‍👧‍👦 Great for all ages
  • 🕹️ Addictive gameplay

Room to improve

  • 🐛 Some bugs and glitches
  • 🤔 Repetitive questions
  • 🗺️ Inaccurate country sizes/shapes
  • 🔍 Missing certain countries/territories

Solar System for kids

From 245 App Store ratings

What we love

  • 👍 Educational for kids
  • 👍 Fun and engaging games
  • 👍 Beautiful illustrations and colors
  • 👍 Pleasant sounds
  • 👍 Kid-friendly

Room to improve

  • 💰 Everything costs money
  • 💰 Too expensive to purchase
  • 💰 Locked content
  • 😞 Disappointed with payment model
  • 😞 Faulty purchase restoration

Bugs and requests

Stack the Countries®

Reported bugs

5 issues
  • Albania's position is tilted
  • Overlapping of certain countries (e.g. Turkmenistan, Uzbekistan, Afghanistan)
  • Incorrect information (e.g. Pyongyang in South Korea)
  • Game freezing or crashing
  • Progress not saving properly

Requested features

6 requests
  • Add more countries and territories (e.g. Vatican City, Western Sahara, Kosovo, Taiwan)
  • Improve accuracy of country sizes and shapes
  • Increase variety of questions (e.g. capitals, landmarks, languages, geography facts)
  • Add read-aloud option for questions
  • Introduce more game modes and difficulty levels
Show 1 more
  • Create a sequel with enhanced features (like Stack the States 2)

Solar System for kids

Reported bugs

3 issues
  • 🐛 Error message: get full access
  • 🐛 Unable to restore purchase
  • 🐛 Lock icons appear

Requested features

2 requests
  • Unlock all planets
  • Make app more affordable

In-app purchases

None

Stack the Countries®

No in-app purchases

1 purchases

Solar System for kids

One-time1
  • Full version$9.99

Questions

Is Stack the Countries® free?
Stack the Countries® costs $2.99, with no in-app purchases.
Is Solar System for kids free?
Solar System for kids is free to download, with in-app purchases available.
Which has better reviews, Stack the Countries® or Solar System for kids?
Stack the Countries® is rated higher. Stack the Countries® averages 4.6 out of 5 from 1K ratings, while Solar System for kids averages 4.5 from 245 ratings.
Do Stack the Countries® or Solar System for kids have ads?
Neither Stack the Countries® nor Solar System for kids shows ads.
Which is updated more often, Stack the Countries® or Solar System for kids?
Stack the Countries® ships an update every 6 months, and Solar System for kids every 2 months. Most recently, Stack the Countries® was updated on October 23, 2026 and Solar System for kids on October 23, 2026.

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