Gravity Labs
Roll marbles. Feel gravity!
Free · Designed for iPad. Not verified for macOS.
Tilt your way through 8 marble mazes while gravity flips between Earth, the Moon and Jupiter. No ads, no purchases, no internet — just real physics fun.
The device itself is the lab instrument! Gravity Lab turns your iPhone or iPad into a pocket physics playground for young scientists aged 8–12.
TILT TO EXPERIMENT
Steer a marble through 8 hand-crafted mazes just by tilting the device. Dodge the holes, find the gaps, reach the flag — and feel how real physics behaves while you do it.
FEEL THREE GRAVITIES
• Earth — the world you know
• Moon — 1/6 gravity, the marble floats like an astronaut
• Jupiter — 2.4× gravity, heavy and fast!
Some levels even switch gravity mid-run. Adapt, scientist!
ICE OR SAND
Slippery ice barely slows the marble; grippy sand brakes it fast. Friction stops being a textbook word the moment you feel the difference.
LEARN WITHOUT READING A TEXTBOOK
Every finished level shows a one-line Lab Note — a real science fact about what just happened. Galileo's marble experiment, why ice is slippery, how astronauts jump higher: science sneaks in one line at a time.
EARN LIKE A SCIENTIST
• 1–3 stars per level for speed and precision
• Coins to spend on marble skins (galaxy, lava, glitter)
• 6 scientist badges: Friction Finder, Gravity Guru, Momentum Master and more
• A daily lab streak for coming back to experiment
MADE FOR KIDS, TRUSTED BY PARENTS
• No ads, no in-app purchases, no tracking
• No account, no internet needed — works fully offline
• No reading required to start playing
• All progress stays on the device
• Prefer not to tilt? Finger-steering mode is in Settings
Pick up the lab. Tilt it. That's the whole instruction manual.
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The developer, Anand Sengupta, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Anand Sengupta
- Size
- 1.7 MB
- Category
- Puzzle
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Made for Ages 9–11
- Copyright
- © 2026 Anand Sengupta