# Gravity!

> Education

Canonical page: [https://chrome-stats.com/d/id738871919](https://chrome-stats.com/d/id738871919)

## Overview

- **ID:** `id738871919`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Marc Davis
- **Category:** Education
- **Rating:** 3.90 / 5 (18 ratings)
- **Version:** 2.2
- **Last updated:** 2026-07-29
- **First published:** 2013-12-25
- **Size:** 17 MB
- **Data as of:** 2026-09-21
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/gravity/id738871919)
- **Website:** [http://marcdav.is/programming](http://marcdav.is/programming)
- **Privacy policy:** [https://marcdav.is/privacy/gravity](https://marcdav.is/privacy/gravity)

## Description

This app simulates the effects of gravity.  You can fling particles at each other and watch them interact.  Create solar systems and galaxies!  Make a planet and fling asteroids into it!  Add a black hole and watch everything get sucked in!  You can adjust the size, mass, and color of the particles!  Zoom in and out and look around with two fingers!

App Preview Music: "Mesmerizing Galaxy " Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 4.0 License
http://creativecommons.org/licenses/by/4.0/

## Rankings

- #277,155 — Overall

## Review summary

Gravity! is a fun, visually pleasing sandbox with strong customization and replayability, but it suffers from stability issues, missing features (undo, rotation controls, presets), and unclear physics and tutorials. Its charm lies in experimentation, yet updates and usability gaps limit long-term polish.

### Pros

- Fun sandbox-style gameplay that’s entertaining to experiment with for hours.
- Extensive customization options (colors, sizes, masses, and density) via edit mode.
- Visually appealing animations and orbit visuals.
- Overall replayable and time-killing, great for passing time.

### Cons

- Frequent crashes and instability, especially after updates (some versions become unplayable).
- Rotation control has been removed; users want the rotation slider back.
- Not enough content/features; missing undo/delete, presets, and clearer tutorials.
- Gravity/physics are inconsistent or hard to predict, with unclear rules for attraction/repulsion.

## Similar extensions and apps

- [playGravity](https://chrome-stats.com/d/id1502902320)
- [AR Gravity](https://chrome-stats.com/d/id1546699976) — 5.00 / 5
- [Gargantua: Black Hole Sim](https://chrome-stats.com/d/id6786040292) — 5.00 / 5
- [Planet Gravity - SimulateOrbit](https://chrome-stats.com/d/id1566504157) — 4.20 / 5
- [Gravity Free - Light Particles Manipulation App](https://chrome-stats.com/d/id617327108) — 4.20 / 5
- [Gravilocity](https://chrome-stats.com/d/id380854648) — 4.70 / 5
- [Planet Gravity](https://chrome-stats.com/d/id995682820)
- [ViGravitatis](https://chrome-stats.com/d/id1500181187)
- [Physics Lab Pro](https://chrome-stats.com/d/id6756887444) — 5.00 / 5
- [My Solar System](https://chrome-stats.com/d/id1150230308) — 2.40 / 5
- [Star Cluster Simulator](https://chrome-stats.com/d/id1571416985) — 3.40 / 5
- [Newton's School - Brilliant](https://chrome-stats.com/d/id6477858804)

---

Source: [Chrome-Stats](https://chrome-stats.com/d/id738871919)