Solar System for Kids: Lexi
Reallexi LLC Education In-app purchases
Solar system for kids: float things on the Moon and Mars, then explore planets!
- Downloads
- 137+
- on Google Play
- Price
- Free
- In-app purchases
- Updated
- Sep 25
- 2026 · v1.0.3
Screenshots
About Solar System for Kids: Lexi
Lexi is a solar system and gravity playground made for little hands, ages 3 and up.
DROP IT AND SEE
In the Gravity Lab, children drop eggs, balls, feathers, friendly animals, water and sand, then switch the world. On the Moon things fall slowly, on Jupiter they fall fast, and with gravity off everything floats. The physics is real: the egg that cracks when it falls off the shelf on Earth lands safely on the Moon, and the speed meter shows why. Animals are never hurt: they land softly and smile.
SEVEN SPACE STUDIOS
• Gravity Lab: the Drop Zone and mini games: Moon Bounce, Egg Drop Challenge, Balloon Lift, Rocket Launch, Catch the Stars, Stack It and a gravity marble run.
• Solar System: fly to the Sun, the planets and the Moon in 3D, hear friendly facts, then jump into the Gravity Lab on that world.
• Space Coloring: paint a rocket, an astronaut, planets, a Moon rover and more in 3D.
• Space Puzzles: planet puzzles, planet order, size sorting and constellations.
• Star Studio: paint the night sky with glowing brushes, spin galaxies and stamp planets.
• Space Learning: a Space ABC, counting stars, gravity words, tracing and a "Which falls first?" quiz.
• Space Music: a planet band, a star xylophone, Moon drums and space sounds.
MADE FOR CHILDREN AND THEIR GROWN-UPS
• A warm read-aloud voice, captions and big buttons.
• Works fully offline. No ads, no tracking, no accounts: nothing leaves the device.
• English, Arabic, French and Persian.
• Purchases and settings sit behind a grown-up check.
Some activities are open to everyone; a membership unlocks all of them.
DROP IT AND SEE
In the Gravity Lab, children drop eggs, balls, feathers, friendly animals, water and sand, then switch the world. On the Moon things fall slowly, on Jupiter they fall fast, and with gravity off everything floats. The physics is real: the egg that cracks when it falls off the shelf on Earth lands safely on the Moon, and the speed meter shows why. Animals are never hurt: they land softly and smile.
SEVEN SPACE STUDIOS
• Gravity Lab: the Drop Zone and mini games: Moon Bounce, Egg Drop Challenge, Balloon Lift, Rocket Launch, Catch the Stars, Stack It and a gravity marble run.
• Solar System: fly to the Sun, the planets and the Moon in 3D, hear friendly facts, then jump into the Gravity Lab on that world.
• Space Coloring: paint a rocket, an astronaut, planets, a Moon rover and more in 3D.
• Space Puzzles: planet puzzles, planet order, size sorting and constellations.
• Star Studio: paint the night sky with glowing brushes, spin galaxies and stamp planets.
• Space Learning: a Space ABC, counting stars, gravity words, tracing and a "Which falls first?" quiz.
• Space Music: a planet band, a star xylophone, Moon drums and space sounds.
MADE FOR CHILDREN AND THEIR GROWN-UPS
• A warm read-aloud voice, captions and big buttons.
• Works fully offline. No ads, no tracking, no accounts: nothing leaves the device.
• English, Arabic, French and Persian.
• Purchases and settings sit behind a grown-up check.
Some activities are open to everyone; a membership unlocks all of them.
What’s new
Version 1.0.3 · Updated September 25, 2026
• Drop and throw eggs, animals, and water, then switch gravity to Moon, Mars, or zero-G. • Seven lab games, including Moon Bounce, Egg Drop, and Rocket Launch. • Fly around the Sun and planets in 3D, then jump into the lab. • Explore space in 3D, solve puzzles, paint the night sky, and play in the Planet Band. • Battery-friendly: the app rests when not in use, and graphics start on Low (adjustable in Settings). • Sound stops immediately when you leave the app and resumes when you return.