# 3-Body — 2D Gravity Simulator Fun > 2D N-body gravity simulator for exploring physics and celestial mechanics. (iPhone/iPad app by Cubic Insights LLC.) - Source: https://appshunter.io/ios/app/3-body/id6642661687 (this page in markdown: same URL + `.md`) - Developer: [Cubic Insights LLC](https://appshunter.io/developer/1763432190) - Category: Education, Entertainment - Price: Free - Rating: 5.00/5 from 3 App Store ratings · 2 written reviews indexed - Age rating: 4+ - Requires: iOS 15.0 · 9 MB - Languages: American English - Released: 2024-08-20 - Data updated: 2026-09-03 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/3-body/id6642661687/reviews.md ## What is 3? 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! ## Key features - Simulate gravity interactions - Explore preset configurations - Customize body size, color, and trails - Educational and fun physics experiments - Create mesmerizing visual patterns ## Recent user reviews (2 of 2) All indexed reviews: https://appshunter.io/ios/app/3-body/id6642661687/reviews.md ### 5/5 — Very cool *2026-08-23* I don’t know much about physics but have been interested in the 3Body problem since the Netflix show came out. Very interesting little game to explore and learn! ### 5/5 — Awesome!! *2024-09-12* Endless possibilities, based on the series “3 Body Problem” Very addicting! ## Frequently asked questions about 3 ### What is 3-Body? 3-Body is a 2D N-body simulator that allows users to explore the wonders of gravity and celestial mechanics. It's inspired by the "3-Body Problem" in physics and offers a fun, educational experience. ### What kind of physics concepts can I explore with 3-Body? You can explore gravitational interactions between bodies with mass, observe how they move under gravity, and experiment with stable configurations like figure-eight orbits. It's a hands-on way to learn about gravitational physics. ### Can I customize my simulations in 3-Body? Yes, 3-Body offers extensive customization. You can tailor the size, color, and trails of the bodies you create, allowing you to experiment with how these changes affect the overall system. ### Is 3-Body suitable for learning? Absolutely. While primarily informational and fun to experiment with, 3-Body provides an engaging way to learn about gravitational physics. It's designed to captivate students, teachers, and curious individuals alike. ### What devices does 3-Body support? 3-Body is available on iPhone, iPad, and iPod. It is designed for iOS devices. ### How often is 3-Body updated? The latest version, 1.3.0, was released on July 19, 2025. The app was initially released on August 20, 2024, indicating active development and updates. ### Does 3-Body have ads? No, 3-Body does not contain advertisements. It offers an uninterrupted experience for users exploring its physics simulations. ### What is the user sentiment for 3-Body? Based on the available data, 3-Body has a perfect rating of 5.0 stars from 2 ratings, suggesting a highly positive user sentiment among its early adopters. ## Version history (last 5 releases) ### 2.0.2 — 2026-08-22 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. ### 1.3.0 — 2025-07-19 - Bug fixes and tweaks - Updated contact email ### 1.2.10 — 2024-12-12 - Performance improvements - Support button ### 1.2.8 — 2024-12-08 - Fix bug with creating bodies after panning/zooming - Added empty system - Fix stars rendering for large pan distances - Max/Min zoom - Ability to disable glow around bodies - Fix start position of random systems - Small fixes with UI ### 1.2.2 — 2024-12-06 - Fix black screen issue ## Apps similar to 3 | App | Rating | Price | Category | | --- | --- | --- | --- | | [Celestia - Space Simulator](https://appshunter.io/ios/app/celestia-space-simulator/id1500434829) | 4.4 (317) | Free | Education | | [Graviton Sim](https://appshunter.io/ios/app/graviton-sim/id6754208416) | — | Free | Education | | [Orbital Simulator: Explorer](https://appshunter.io/ios/app/orbital-simulator-explorer/id6511195732) | 5.0 (5) | Free | Education | | [Gravity!](https://appshunter.io/ios/app/gravity/id738871919) | 3.9 (18) | Free | Education | | [Stars and Planets - Astronomy](https://appshunter.io/ios/app/stars-and-planets-astronomy/id1170904676) | 4.7 (1,222) | Free | Education | | [WolframAlpha](https://appshunter.io/ios/app/wolframalpha/id548861535) | 2.8 (129) | Free | Education | --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-03.*