Gravity! vs Graviton Sim
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Gravity!
Simulate the forces of gravity by flinging particles and observing their interactions. Create celestial bodies like planets and black holes, and customize their properties. Explore vast cosmic simulations with intuitive zoom and pan controls.
- Gravity simulation
- Particle interaction
- Create solar systems
- Add black holes
- Adjust particle properties
- Zoom and pan controls
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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/
Graviton Sim
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A physics simulation exploring gravitational dynamics and orbital mechanics.
Screenshots
Verdict
The clearest difference is in-app purchases: Graviton Sim at none against Gravity!'s 1. Graviton Sim also leads on update cadence (every 9 days vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Gravity! sells 1 one-off in-app purchase. Graviton Sim asks for nothing beyond the download.
Gravity! ships an update every 2 months, Graviton Sim every 9 days. The most recent releases landed on August 6, 2026 and September 18, 2026 respectively.
| Parameter | Gravity! | Graviton Sim |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (18 ratings) — better | — |
| Positive reviews | 73.5% of reviews | — |
| Number of ratings | 18 — better | — |
| Update frequency | Every 2 months | Every 9 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 15.6 | 15.6 |
| Further details — not scored | ||
| Size | 17 MB | 63 MB |
| Age rating | 4+ | 4+ |
| Developer | Marc Davis | Scott Carnett |
In-app purchases
Gravity!
- Gravity! Extended Edition$0.99
Graviton Sim
No in-app purchases
