ENIAC Simulator
Experience computing in 1946
Free
Apple Vision
Step inside ENIAC - the 30-ton, room-filling computer that launched the digital age. A fully immersive experience for Apple Vision Pro.
In February 1946, the curtain was drawn back on the world's most powerful machine. ENIAC - the Electronic Numerical Integrator and Computer - filled an entire room at the University of Pennsylvania, weighed 30 tons, consumed 150 kilowatts of power, and could perform 5,000 additions per second. Nothing like it had ever existed.
Now you can stand inside it.
A Museum You Can Walk Through
ENIAC for Vision Pro places you inside a full-scale, spatially accurate recreation of the original machine. Walk along the towering banks of cabinets. Examine the thousands of vacuum tubes that glowed at the rear of each panel. Stand at the mobile function tables where operators once configured lookup values by hand.
Discover the History
Select the information labels to learn about each section of the machine: the accumulators, the multiplier unit, the constant transmitters, the IBM card reader and printer. Uncover the story of the six women who programmed it, the US Army problem it was built to solve, and the decade of continuous operation that followed its unveiling.
It's big!
If you don't have room to walk the full length of the machine, teleport directly to any point of interest.
The Numbers
18,000 vacuum tubes · 70,000 resistors · 6,000 switches · 30 tons · 1,800 sq ft · 150 kW · operational 1946–1955
Credits
The reference used in this experience draw on the meticulous documentation work of Dr Brian Stuart, whose physical survey and working simulation of ENIAC have made it possible for a new generation to encounter this landmark machine.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Bug fixes.
Updated the app to use latest visionOS frameworks, so items like the pop-up information panels work better.
Improved textures and mobile function tables.
Added some posters.
The developer, John Kennedy, 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
- John Kennedy
- Size
- 171.5 MB
- Category
- Education
- Compatibility
Requires visionOS 26.0 or later.
- Apple Vision
Requires visionOS 26.0 or later.
- Apple Vision
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © John Kennedy, 2026