nowfound

Life & fun · alternatives · 2026

Newton's Orchard is a browser-based playground that lets users experiment with space and gravity concepts. It's designed for anyone interested in physics simulation and interactive learning. The tool runs entirely in a… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier.

  1. 1

    Gravity WebGL experiment in the Solar System

    2016 · github.com · its alternatives →

  2. 2IB
  3. 3

    Iterate on cloud apps in milliseconds, not minutes

    2024 · winglang.io · its alternatives →

  4. 4
    Atlas of Spacefree▲770

    Hello HN! Sharing a recent side project of mine, the Atlas of Space, that I built out to explore the Solar System. As a long-time space nerd, I realized recently that I didn't have a good intuition on the scale, speed, and relative orientation of the celestial bodies around us. So over the break I built out a kind of spatial Wikipedia to click around and learn about planets, moons, asteroids, and other bodies orbiting the Sun. The physics is all simulated in the browser using simple Newtonian mechanics. There's a lot left to do from here, including modeling objects in non-Keplerian orbits…

    2025 · atlasof.space · its alternatives →

  5. 5

    A new creative coding environment in Framer X

    2019 · framer.com · its alternatives →

  6. 6

    A free magazine about building & scaling communities

    2022 · orbit.love · its alternatives →

  7. 7GI

    Just for fun and self education, I've built this over a weekend to teach myself why orbits exist, not just show planets going around. Something that was never clearly explain to me in school. It opens with a guided tour that builds the idea up step by step: two bodies and the equal/opposite force, inertia (the Sun is removed and Earth just drifts straight), then "an orbit is falling and continuously missing," cosmic velocities with a little rocket, Voyager 1 & 2's real gravity assists (the clock runs the actual 1977–1989 dates so the planets orbit into their grand-tour alignment and the…

    Jun 2026 · qunabu.github.io · its alternatives →

  8. 8
    Gravity 8▲212

    Build a SaaS app at warp speed with a Javascript boilerplate

    2021 · usegravity.app · its alternatives →

  9. 9

    Sharing, Feedback & Planning Made Easy

    2024 · apps.apple.com · its alternatives →

  10. 10

    Design like a pro: t-shirts, logos, posters, memes, and more

    2024 · playgroundai.com · its alternatives →

  11. 11
  12. 12

    Inspired by Compiler Explorer and other playground/fiddle websites like jsfiddle, db-fiddle, Go playground, and Rust playground, I thought it would be cool to have a playground for nearly any program so I've been working on Program Explorer: a playground for running programs from containers. I am inspired by these playgrounds because they are great educational tools for quickly experimenting and as communication tools by sharing shortlinks that reproduce bugs for instance. I would love for every open source project that publishes a container to get their own playground for free. I'm…

    2025 · programexplorer.org · its alternatives →

  13. 13IB
  14. 14

    Discover the endless desert. A beautiful game for mobile.

    2018 · apps.apple.com · its alternatives →

  15. 15
    Spacetime▲166

    Be the first to know about space launches

    2020 · its alternatives →

  16. 16

    A map of fascinating things on the internet

    2021 · its alternatives →

  17. 17

    Gravity-shifting action platformer about an octopus

    2015 · store.steampowered.com · its alternatives →

  18. 18HO

    3D gravity and space Simulator. Explore and play around with the force of gravity in the context of an array of scenarios from our solar system and beyond. You can add planets, delete the Sun, change the value of the gravitational constant or simply lean back and enjoy the dazzling beauty of the pen

    2018 · thehappykoala.github.io · its alternatives →

  19. 19
    Gravity▲29

    Build a SaaS web application at warp speed

    2019 · usegravity.app · its alternatives →

  20. 20

    A game about gravity and asteroids

    2014 · apps.apple.com · its alternatives →

  21. 21

    Guide your spacecraft through the gravity

    2016 · ianmaclarty.com · its alternatives →

  22. 22

    Did gravity ever let you down?

    2018 · expireddomains.com · its alternatives →

  23. 23

    Hey HN! I made Orbit, an iOS app that allows you to see the satellites, planets, and constellations above you in AR, on a 2D map, and on a 3D globe. The app includes more than 15,000 objects tracked by CelesTrack, together with their pass predictions, descriptions, and detailed orbital data. A searchable catalog of all objects is also available, as well as a built-in chatbot designed to answer any space-related questions you might have. This is my first published iOS app, so any feedback is greatly appreciated! App Store: https://apps.apple.com/app/id6772174570

    Jul 2026 · nagylukas.github.io · its alternatives →

  24. 24

    A gravity simulator, with updated movement controls

    2016 · valentinvichnal.github.io · its alternatives →

Also compare

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →