A 2D gravity playground for planets, stars, and supermassive black holes. Tune the constants, launch a trajectory, and watch orbital mechanics unfold in real time — no cloud, no ads, just physics.
Try it now → drag anywhere on this screen to launch a planet into orbit around the core.
Every feature mirrors real celestial mechanics — rendered locally, in real time, at 100% zero cost.
Spawn planets, stars, and supermassive black holes. Tap and drag to set a vector trajectory and watch orbital paths form live.
Test your physics intuition across dozens of space-navigation levels built around planetary gravity wells.
Explore binary star systems, Lagrange points, and chaotic multi-body collisions with a single tap.
Tweak the gravitational constant, shift time dilation, and watch kinetic energy and velocity charts update live.
Pure local physics rendering — zero cloud requirements, no battery drain, zero ads, zero paywalls.
We're a small team of physics nerds and interface designers obsessed with one question: what if gravity was something you could actually touch? OrbitalPulse started as a weekend prototype — a single planet orbiting a single star — and grew into a full N-body sandbox because we couldn't stop adding "just one more" celestial body.
Our mission is simple: make celestial mechanics feel intuitive instead of intimidating. Textbooks explain orbital velocity with equations; we let you drag a planet, release it, and watch the same math play out as a glowing trajectory across your screen. Understanding gravity should feel like play, not homework.
Inside the app you get a genuine physics engine, not a fake animation loop — real gravitational constants, real velocity vectors, real chaotic multi-body outcomes. Spawn a supermassive black hole, launch a binary star system, or dial in Lagrange points, then adjust time dilation and watch the kinetic energy charts respond instantly, all rendered locally with zero lag and zero ads.
"Master the laws of gravity — one orbit at a time."
OrbitalPulse: Space Physics is designed as a 100% free, fully offline gravity simulator. This policy explains, in plain language, what happens (and doesn't happen) to your information when you use the app.
We collect nothing. OrbitalPulse does not request, gather, or record any personal information, device identifiers, location data, contacts, photos, or usage analytics. There are no sign-up forms, no account creation, and no hidden telemetry running in the background. Every simulation — from a single orbiting planet to a chaotic multi-body collision — runs entirely inside the app with no data ever leaving your device.
Because no information is collected, none is used, analyzed, profiled, or sold. We do not build usage patterns from your gravitational-constant tweaks, your slingshot puzzle attempts, or your preset celestial systems. There is nothing to monetize because there is nothing gathered in the first place.
All simulation data — planet positions, velocity vectors, time-dilation settings, and physics-lab parameters — is stored exclusively in your device's local memory and storage while the app is open. Nothing is uploaded to a server, synced to a cloud account, or backed up externally by us. Closing the app or deleting it removes any locally cached simulation state along with it.
OrbitalPulse contains no third-party analytics SDKs, no advertising networks, no crash-reporting trackers, and no social-media integrations. The app was built to run its physics engine entirely offline, which means there are no external services in the loop capable of receiving your data, because none are embedded in the app.
Since no personal data is transmitted or stored remotely, there is no server-side database to breach and no account credentials to protect. Your device's own operating-system security governs the local app sandbox, and OrbitalPulse does not open network ports, request unnecessary permissions, or expose simulation data to other apps.
OrbitalPulse is safe for users of all ages, including children under 13. The app does not collect any personal information from anyone, regardless of age, and contains no chat features, user-generated content sharing, or in-app purchases that would require age verification. It is designed to comply with the spirit of COPPA by simply never collecting data in the first place.
Because OrbitalPulse has no accounts, no cloud profile, and no persistent server-side record, there is nothing for us to delete on request — your control is already absolute. If you wish to remove all local simulation data, simply clear the app's data or uninstall OrbitalPulse from your device; every trace of your gravity sandboxes disappears with it.
If our data practices ever change — for example, if a future update introduces an optional cloud-sync feature — we will revise this policy, update the Effective Date above, and make the changes clearly available within the app before they take effect. We will never retroactively apply looser data practices without informing users first.
If you have questions about this Privacy Policy or how OrbitalPulse handles (or rather, doesn't handle) data, reach out to us at privacy@orbitalpulsespacephysicsapp.com.
🛰️ Got a question, a bug report, or an idea for the next preset celestial system? We're a small team and we genuinely read every message that comes through.
⏱️ We typically respond within 24–48 hours — orbital mechanics are fast, our inbox is faster.