Comparison

PlanetenSpielundApp2b vs Smithsonian

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

Head to head
About

PlanetenSpielundApp2b

An educational game designed for children to explore and learn about celestial bodies, including planets, moons, stars, and black holes. It features a gravitation arena to demonstrate Newton's laws of motion.

Highlights
  • Learn about planets, moons, and stars
  • Explore black holes and nebulae
  • Gravitation arena for physics demonstrations
  • Interactive celestial body learning
  • Newton's laws of motion explained
Features
Read full description

Educational game for children to learn the celestial bodies (all planets included, many known moons, asteroids, stars, black holes and the latest a nebula). We still have some celestial bodies in the works - please leave them in the comment if a specific celestial body is to be included.  A gravitation arena where you can see, Newton Laws in action. Lernspiel für Kinder zum Erlernen der Himmelskörpern (alle Planeten dabei, bekannte Monde, Asteroiden, Stern, schwarze Löcher). Wir haben noch einige Himmelskörper in Arbeit - bitte in die Kommentar hinterlassen, wenn ein bestimmter Himmelskörper aufgenommen werden soll.  Eine Gravitationsarena, wo Newton Gesetze wirken.

About

Smithsonian

Explore the solar system with interactive games and animations. Learn fascinating facts about planets, moons, and the asteroid belt. Designed for curious young minds to introduce astronomy basics.

Highlights
  • Fascinating facts about the solar system
  • Mini games like Space Winter Rush
  • Interactive activities
  • Educational animations
  • Read to Me text
  • Collect planet badges
Features
Read full description

Join us on an exciting voyage through the solar system! Play, touch, read. and learn facts about the 8 planets in our solar system in this new app from The ©Smithsonian and PlayDate Digital. Designed for curious minds, this app features brilliantly illustrated animations which are sure to engage and entertain. Why is Mars called the Red Planet? Which is the brightest Planet? How many moons does Neptune have? What is the Asteroid Belt? Explore Planets, learn facts, and play games as you rocket through the solar system. Your space enthusiast will love learning all about the wonders of space and the universe. The mini games reinforce the learnings and interactive activities will keep kids engaged. Features: • Lots of fascinating facts about our solar system, its planets, and more! • Featuring mini games including Space Winter Rush, Comet Ceasefire, Solar System Sorting, Gas Planets and more! • Over 10 other interactive activities related to your space adventure. • Educational content and animations will entertain and engage while teaching simple astronomy basics. • ‘Read to Me’ text • Collect solar system and planet badges as you complete each level Planets and the Solar System from ©Smithsonian Kids is designed to deliver on these Learning Goals: • STEM: Introduce young learners to astronomy and science methods. • STEM: Expand young learners' curiosity and knowledge of the world around them. • Counting and Quantifying: Identify and organize groups of objects logically. • Visual Discrimination: Distinguish between different shapes, sizes, colors. • Visual Memory: Remembering and recalling visual information. • Color Recognition and Differentiation: Identifying and naming colors. • Shape Recognition and Classification: Identifying objects based on different shapes. ABOUT THE SMITHSONIAN The ©Smithsonian is the world’s largest museum and research complex, dedicated to public education, national service, and scholarship in the arts, ©Smithsonian sciences, and history. The name of the ©Smithsonian Institution and the sunburst logo are registered trademarks of the ©Smithsonian Institution. For more information, please visit www.si.edu ABOUT PLAYDATE DIGITAL PlayDate Digital Inc. is a publisher of high-quality, interactive, mobile educational software for children. PlayDate Digital's products nurture children's emerging literacy and creativity skills by turning digital screens into engaging experiences. PlayDate Digital content is built in partnership with some of the world's most trusted global brands for kids. Visit us: playdatedigital.com Like us: facebook.com/playdatedigital Follow us: @playdatedigital Watch all our app trailers: youtube.com/PlayDateDigital1 HAVE QUESTIONS? We'd love to hear from you! Your questions suggestions and comments are always welcome. Contact us 24/7 at info@playdatedigital.com

Screenshots

PlanetenSpielundApp2b3 screens
Smithsonian4 screens

Verdict

The call

The clearest difference is in-app purchases: PlanetenSpielundApp2b at none against Smithsonian's 2. Smithsonian's advantage is update cadence (every 3 months vs every 7 months) and iOS requirement (13.0 vs 18.0). On price, ads 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. Smithsonian sells 2 one-off in-app purchases. PlanetenSpielundApp2b asks for nothing beyond the download.

UpkeepUpdate frequency

PlanetenSpielundApp2b ships an update every 7 months, Smithsonian every 3 months. The most recent releases landed on October 15, 2026 and October 9, 2026 respectively.

Scorecard4 real differences · 6 level
PlanetenSpielundApp2b versus Smithsonian: the parameters behind the verdict, then further details
ParameterPlanetenSpielundApp2bSmithsonian
PriceFreeFree
Rating3.5 (2 ratings) — better—
Positive reviews—100.0% of reviews
Number of ratings2 — better—
Update frequencyEvery 7 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.013.0 — better
Further details — not scored
Size152 MB285 MB
Age rating4+4+
DeveloperSteffen RokoschPlayDate Digital Inc.

Customer experience

PlanetenSpielundApp2b

All ratings2 ratings
Positive50.0%
Neutral50.0%
Negative0.0%

Smithsonian

Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

PlanetenSpielundApp2b

No in-app purchases

2 purchases

Smithsonian

One-time2
  • Remove Ads$1.99
  • Buy 5 Planets$2.99

Questions

Is PlanetenSpielundApp2b free?
PlanetenSpielundApp2b is free to download, with no in-app purchases.
Is Smithsonian free?
Smithsonian is free to download, with in-app purchases available.
Do PlanetenSpielundApp2b or Smithsonian have ads?
Neither PlanetenSpielundApp2b nor Smithsonian shows ads.
Which is updated more often, PlanetenSpielundApp2b or Smithsonian?
PlanetenSpielundApp2b ships an update every 7 months, and Smithsonian every 3 months. Most recently, PlanetenSpielundApp2b was updated on October 15, 2026 and Smithsonian on October 9, 2026.

Other comparisons