Comparison

PlanetenSpielundApp2b vs Project Planet Space

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

Project Planet Space

Explore our solar system with an interactive map. Discover planetary gravity, temperatures, and atmospheric data. Calculate your weight on other worlds and learn fascinating space facts.

Highlights
  • Interactive solar system map
  • Personalized weight and age calculations
  • Detailed planetary data widgets
  • Multi-language support
  • Metric/Imperial unit switching
  • Cosmic museum aesthetic
  • Real astronomical data integration
Features
Read full description

Project Planet - an interactive map of our solar system How much would you weigh on Jupiter? Why does a day on Mercury last longer than its year? Project Planet turns space facts into a fingertip-sized journey. Scroll through all nine planets (Pluto included), feel each world's pull on your own body, and explore the numbers astronomers have spent decades collecting. Highlights - Sticky scroll across the system: from Mercury to Pluto, each planet stays centred long enough for you to take it in. - You, on every world: enter your weight and age once and watch them recalculated by each planet's gravity and orbital period. - Five rich widgets per planet: surface temperature with reference markers (Antarctica, freezing, boiling), atmospheric pressure with composition chart, travel times from Earth from walking up to the speed of light, gravitational force with everyday objects (phone, backpack, car), and an interactive pressure simulator with phase changes for water, oxygen, CO2, hydrogen, nitrogen and mercury (Antoine equation under the hood). - Six languages: Czech, English, German, Slovak, Spanish and French, auto-detected from your device. - Metric or imperial: switch instantly; weights, temperatures and distances follow your preference. - Crafted to feel like a small cosmic museum: dark cosmic theme, hand-tuned typography, subtle scroll choreography, and a right rail that lets you jump to any planet. - Built on real data: gravitational accelerations, orbital periods, NASA mean temperatures, atmospheric compositions and substance phase transitions. Requires an internet connection. The app runs as a continuously updated webview and uses native iOS capabilities such as haptic feedback to add a tactile dimension to your interstellar journey.

Screenshots

PlanetenSpielundApp2b3 screens
Project Planet Space4 screens

Verdict

The call

The clearest difference is rating: Project Planet Space at 5.0 against PlanetenSpielundApp2b's 3.5. Project Planet Space also leads on iOS requirement (15.0 vs 18.0). PlanetenSpielundApp2b's advantage is update cadence (every 7 months vs every 25 months). On price, ratings volume, 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Project Planet Space holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

UpkeepUpdate frequency

PlanetenSpielundApp2b ships an update every 7 months, Project Planet Space every 25 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

Scorecard3 real differences · 6 level
PlanetenSpielundApp2b versus Project Planet Space: the parameters behind the verdict, then further details
ParameterPlanetenSpielundApp2bProject Planet Space
PriceFreeFree
Rating3.5 (2 ratings)5.0 (1 ratings) — better
Number of ratings2 — better1
Update frequencyEvery 7 months — betterEvery 25 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.015.0 — better
Further details — not scored
Size152 MB2 MB
Age rating4+4+
DeveloperSteffen RokoschMiroslav Hanzelka

In-app purchases

None

PlanetenSpielundApp2b

No in-app purchases

None

Project Planet Space

No in-app purchases

Questions

Is PlanetenSpielundApp2b free?
PlanetenSpielundApp2b is free to download, with no in-app purchases.
Is Project Planet Space free?
Project Planet Space is free to download, with no in-app purchases.
Which has better reviews, PlanetenSpielundApp2b or Project Planet Space?
Project Planet Space is rated higher. PlanetenSpielundApp2b averages 3.5 out of 5 from 2 ratings, while Project Planet Space averages 5.0 from 1 ratings.
Do PlanetenSpielundApp2b or Project Planet Space have ads?
Neither PlanetenSpielundApp2b nor Project Planet Space shows ads.
Which is updated more often, PlanetenSpielundApp2b or Project Planet Space?
PlanetenSpielundApp2b ships an update every 7 months, and Project Planet Space every 25 months. Most recently, PlanetenSpielundApp2b was updated on November 3, 2026 and Project Planet Space on November 4, 2026.

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