Gravity! vs Slingshot Racer
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/
Slingshot Racer
Pilot a spacecraft using real orbital mechanics to slingshot around celestial bodies and beat the clock. Earn fuel by answering trivia questions, making knowledge the key to mastering gravity-assist maneuvers.
- Real orbital mechanics
- Gravity-assist maneuvers
- Solar system exploration
- Knowledge-based fuel system
- Time-based challenges
- Mastering one-gesture controls
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You’re a pilot flying ballistic on real trajectories through the solar system, stealing speed from gravity to beat the clock. Mission control counts down, telemetry scrolls, you hit the launch, ride the gravity well, and the ship whips out the far side faster than it came in. The fantasy isn’t science. It’s competence under pressure. The goal is to make gravity something you can feel and wield, so wonder becomes desire and we slingshot the next generation of rocket scientists into existence. Every trajectory in Slingshot Racer is honest. Every gravity assist is real. Every maneuver that looks impossible is something a spacecraft has already flown, or is being built to fly. Nothing here cheats. That’s the whole point, and it’s also the whole thrill. And in this game, fuel is knowledge. Mission control doesn’t hand out engine pulses; a pilot earns them, one true thing at a time. Wonder fills the tank. Here’s what every Slingshot Racer gets: the feeling of becoming the kind of pilot who can read the invisible, bending architecture of gravity, who looks at a planet and sees not an obstacle but a well of speed waiting to be pulled. We hand that architecture to your thumbs before you can name a single equation, and something strange happens on the way: the wonder arrives first. The best games don’t make you dumb… they make you sharp. The best games don’t waste your time… they change your future. This is a game for tomorrow’s pilots and engineers. For the people who will make our species multiplanetary, one whip around Jupiter at a time. The stars have never been closer. How to play: Steal speed from gravity. A ship, a launch rail, and the pull of a planet. Draw back, release, and whip out the far side faster than the ship flew in. That is the whole game, and it is stupidly hard to put down. Slingshot Racer is gravity-assist racing on real trajectories. No fake curves, no invisible rails through space. Every planet is a well of speed waiting to be stolen, and the closer the dive, the harder the whip. Thread the gates, race the clock, chase a personal best. FLY THE SOLAR SYSTEM Launch from the asteroid belt and fly both ways: inbound toward the Sun, outbound into the deep dark. Seven missions, seven problems in motion. - Ceres Shakedown: the first sling, out in the Belt. - The Mars Line: dive deep and fire at the bottom. - Home Run: slip past the Moon and arrive at Earth. - The Ringed Giant: dive the spinning corridors in Saturn's rings. - The Jupiter Run: chain the giant and its moons. - Solar Odyssey: graze the Sun and ride the whip home. - Eris Expedition: one tank, one way, the edge of everything. ONE GESTURE, HARD TO MASTER Draw back the rail to aim. The harder the pull, the faster the launch. Release, and real gravity takes the wheel. A small tank of engine pulses, spent one tap at a time: where you fire matters more than how much. FUEL IS KNOWLEDGE Mission control doesn't hand out pulses. You earn them at the briefing: real questions about gravity, the solar system, and the ships that have flown it, drawn from a certified bank of 340 written for this game. A correct answer loads one pulse into the tank. Every answer, right or wrong, earns a debrief from control. The pilots who fly farthest are the ones who know the most. BUILT IN A BELTER GARAGE The ship is welded from salvaged parts. Mostly engine, with a seat bolted on. Nothing on it exists to look cool. Every piece is there because a physics problem required it. FROM ULTRA-NORMAL No ads. No tracking. No manufactured urgency. A clean, quiet game made for people who like getting good at things. For Heroes of Daily Life.
Screenshots
Verdict
The clearest difference is rating: Slingshot Racer at 5.0 against Gravity!'s 3.9. Slingshot Racer also leads on in-app purchases (none vs 1) and update cadence (weekly vs every 2 months). Gravity!'s advantage is ratings volume (18 vs 3). 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. Slingshot Racer asks for nothing beyond the download.
Slingshot Racer holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: Gravity! has 18 ratings behind it against 3, so its average is the more settled of the two.
Gravity! ships an update every 2 months, Slingshot Racer weekly. The most recent releases landed on October 20, 2026 and October 10, 2026 respectively.
| Parameter | Gravity! | Slingshot Racer |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (18 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 73.5% of reviews | — |
| Number of ratings | 18 — better | 3 |
| Update frequency | Every 2 months | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 17 MB | 17 MB |
| Age rating | 4+ | 9+ |
| Developer | Marc Davis | Justin Neuman |
Customer experience
Gravity!
Slingshot Racer
In-app purchases
Gravity!
- Gravity! Extended Edition$0.99
Slingshot Racer
No in-app purchases









