Interactive Physics Playground

An educational app with interactive simulations of physics concepts (sound, light, motion, gravity) that help students learn through hands-on exploration rather than textbooks. Teachers and students use it to understand abstract physics concepts visually and intuitively.

Browser-based science simulations have seen renewed interest as schools post-pandemic doubled down on remote and hybrid learning tools, and PhET Interactive Simulations from the University of Colorado has been the dominant free resource in this space for over two decades — meaning any paid product is fighting against something both entrenched and free. The $1k–$5k/mo revenue band is plausible only through institutional B2B sales to schools or districts, since individual teachers rarely have budget authority and students won't pay out of pocket for something PhET already covers. The real ceiling problem is that education procurement cycles are slow, and a solo indie hacker can't realistically navigate district purchasing on their own timeline. The most likely failure mode is building a technically solid product that never finds a scalable acquisition channel, because "better simulations" isn't a compelling enough wedge against a free, well-known incumbent with massive SEO presence.