PlanetenSpielundApp2b vs Astris
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
Astris
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This app allows to you discover our solar system with every planet, moons and asteroids and add it to your favorites. You will be able to have a 3d experience with the planets and the sun. Every text is accessible thanks to the speak screen.
Screenshots
Verdict
The clearest difference is update cadence: Astris at every 3 months against PlanetenSpielundApp2b's every 7 months. Astris also leads on iOS requirement (15.0 vs 18.0). On price, ads, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
PlanetenSpielundApp2b ships an update every 7 months, Astris every 3 months. The most recent releases landed on June 1, 2026 and May 16, 2026 respectively.
| Parameter | PlanetenSpielundApp2b | Astris |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 7 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 18.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 152 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Steffen Rokosch | ISTITUTI EDMONDO DE AMICIS SRL |
In-app purchases
PlanetenSpielundApp2b
No in-app purchases
Astris
No in-app purchases
Questions
Is PlanetenSpielundApp2b free?
Is Astris free?
Do PlanetenSpielundApp2b or Astris have ads?
Which is updated more often, PlanetenSpielundApp2b or Astris?
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