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  • 3-Body screenshot 1
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  • 3-Body screenshot 3
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About 3-Body

Explore the Wonders of Gravity with 3-Body - A 2D N-Body Simulator! Dive into the fascinating world of physics with 3-Body, a unique 2D N-body simulator inspired by the famous “3-Body Problem” in physics (also the book series and now Netflix show). Whether you’re a science enthusiast, a fan of celestial mechanics, or just looking for something cool to play with, 3-Body offers a fun and educational experience. Key Features: • Simulate Gravity: Watch as bodies with mass interact with each other, forming complex and mesmerizing patterns as they move under the influence of gravity. • Preset Configurations: Explore stable configurations such as the figure-eight orbit of three bodies, a circular orbit of three masses, or a large body orbited by smaller ones. • Customization: Unleash your creativity by customizing the size, color, and trails of the bodies you create. Tailor each simulation to your liking and see how it affects the system. • Educational & Fun: While the app is primarily informational, it’s also incredibly fun to experiment with. Whether you’re learning about gravitational physics or just enjoying the visual spectacle, 3-Body has something for everyone. Why 3-Body? 3-Body isn’t just a tool—it’s a playground for your imagination. With no specific goal other than to explore, discover, and enjoy, this app brings the wonders of gravity to your fingertips. Whether you’re a student, a teacher, or just someone curious about the universe, 3-Body is sure to captivate and entertain you. Download 3-Body today and embark on your journey through the cosmos!

What’s new

Version 2.0.2 · Updated August 22, 2026

Five new stable systems that keep their shape instead of flying apart: Flower, Two Ovals, Loop Triangles, Broucke, and Triple Rings. Find them on the Systems tab. Smoother, more reliable simulation, plus fixes and polish throughout the app.

App privacy

The developer, Cubic Insights LLC, reported these privacy practices to Apple.

Data Not Collected

The developer does not collect any data from this app.

Alternatives to 3-Body

Looking for apps like 3-Body? Here are 6 similar apps on the App Store. The highest rated is Orbital Simulator: Explorer (5.0/5), and all 6 are free to download.

3-Body vs. alternatives
App Rating Price Last updated Compare
3-Body 5.0 / 5 (3 ratings) Free August 22, 2026
Graviton Sim – Free Dec 13, 2025 Compare
ViGravitatis – Free Apr 6, 2025 Compare
Orbital Simulator: Explorer 5.0 / 5 (6) Free Jul 18, 2024 Compare
Gravity! 3.9 / 5 (18) Free Jul 29, 2026 Compare
Quantum - Particle Life 4.8 / 5 (150) Free Jul 27, 2026 Compare
Milky Way: Cosmic Playground 4.7 / 5 (1,968) Free Oct 23, 2026 Compare

Compare 3-Body with the top alternatives: ratings, updates, ASO score and keyword gaps →