Atom Worldbox
Epic Chemistry Sandbox
Free · In-App Purchases · Designed for iPad. Not verified for macOS.
Build molecules atom by atom, spark real chemical reactions, and split atoms in your pocket. A chemistry & nuclear physics sandbox, now with heat and temperature.
The entire periodic table is yours to play with. Drop atoms onto the screen, watch them bond into real molecules, and trigger genuine chemical reactions all driven by real science, not scripted animations.
Atom Worldbox is an open-ended chemistry and physics sandbox. There are no levels, no goals, and no rules just a living world of atoms governed by the same forces that shape the real universe. Bring two elements together and see whether they bond. Build a known molecule and the app recognizes it instantly. Push reactive elements together and watch reactions ignite, transform, and settle on their own.
WHAT YOU CAN DO
• Experiment with every element on the periodic table
• Watch atoms form covalent, ionic, and metallic bonds based on real chemistry
• Build molecules and see them automatically identified
• Trigger authentic chemical reactions and watch them unfold naturally
• Turn on Thermal Mode: heat and cool your world — condense gases into droplets, boil them, or fuse hydrogen at star-core temperatures
• Explore radioactivity, isotopes, and natural decay
• Set off chain reactions and watch them cascade across your world
• Zoom, pan, and arrange everything with simple, intuitive touch controls
REAL SCIENCE, NOT SPECIAL EFFECTS
Every bond and reaction is calculated from real chemical and physical principles. Atoms attract and repel, electrons transfer, and molecules come together exactly the way they would in nature. It's a living simulation you can build, break, and rebuild as many times as you like.
GREAT FOR
• Curious minds who love to experiment and explore
• Students discovering chemistry and physics
• Teachers looking for an interactive way to show bonding and reactions
• Anyone who loves satisfying, science-driven simulations
Works fully offline. No account required, no clutter—just open it and start building.
Atom Worldbox is free to explore. Upgrade to Pro to unlock the complete sandbox experience.
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
Temperature system overhauled!
• Temperature now affects reactions too: heating speeds up chemistry, cooling slows it, absolute zero freezes it
• At star-core heat, all strong bonds now break (including HF) N₂ and CO hold out longest
• Rebalanced temperature slider with live value and zone labels ("Room", "Weak bonds break", "Star core"...)
• The scene glows ember red as it heats up; breaking bonds flash with sound and haptics
• School package improvements: students now activate Pro access directly through the App Store.
• Minor bug fixes and improvements.
The developer, GEOCO YAZILIM ANONIM SIRKETI, 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 Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- Location
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- GEOCO YAZILIM ANONIM SIRKETI
- Size
- 23.4 MB
- Category
- Education
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and Turkish
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- Atom Worldbox Pro (School) $19.90
- Atom Worldbox Pro $1.99
- Copyright
- © 2026 Geoco