Every Planet
Make worlds. Learn the sky.
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Spin up a world that has never existed, built from real physics, then keep the ones worth remembering.
A calm, honest tour of the universe you can hold in one hand.
Every Planet turns the whole observable universe into something you can hold in your hand.
Tap once and the World Forge builds a planet that has never existed before: an ocean world wrapped in cloud, a ringed gas giant, a lava world cracked with light, a frozen wanderer far from its star. Every world is unique and generated from a single seed, so the one you just made is one you will never see again unless you keep it.
The worlds are imagined. The physics behind them is not.
Every planet carries an honest science dossier. Its year is computed with Kepler's third law. Its warmth comes from the real luminosity of its star and the greenhouse effect of its air. You see its distance from Earth, the year your light would arrive, the length of its day, its host star's temperature, and whether liquid water is even possible. Estimates carry honest uncertainty, the way real astronomy does.
WHAT YOU CAN DO
Forge a world
Make a new world in a tap, or aim the Forge toward what you want to find: water, a giant, two suns, or simply something strange.
Keep the ones worth keeping
Save a world to your Archive, give it a name, and write a note about why you stopped there. Unsaved worlds are gone the moment you move on, so the good ones are worth catching.
Read the real science
Open any world's dossier for a plain, careful explanation of its orbit, star, mass, and light, tied back to the methods astronomers actually use.
Learn the universe, and remember it
The Observatory holds short daily recall questions built on spaced repetition, so real ideas actually stick. Track a gentle streak and watch how much of the sky feels familiar.
Travel outward
Every discovery carries you about eight percent deeper into space, past real landmarks, all the way to the edge of the observable universe.
Go deeper in the Observatory
An orbit lab to move a world through space, a field guide to the stars that make planets possible, an atlas of twelve genuinely strange real worlds, a guide to how we find planets we cannot see, and the big numbers that put it all in scale.
QUIET BY DESIGN
No account. No ads. No tracking. Everything you make stays on your device. Optional ambient audio for the long trip outward. Built to be calm, factual, and yours.
There are around seven hundred quintillion rocky planets out there. Humanity has confirmed about six thousand. Every Planet is a small, honest way to feel that scale, one world at a time.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Every Planet 2.0 is a complete rebuild.
- A brand new World Forge with aimed search: water, giants, two suns, or something strange
- A real science dossier for every world, with orbit, star, light, and habitability
- A personal Archive: name your worlds and write notes to keep
- The Observatory: daily recall, an orbit lab, a star field guide, an atlas of real worlds, and more
- A journey outward past real landmarks to the edge of the observable universe
- Optional ambient audio
Thank you for exploring.
The developer, TIBOR CZEKAY, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- TIBOR CZEKAY
- Size
- 49.5 MB
- Category
- Education
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Tibor Czekay