MyFly World
A real fruit-fly brain in hand
Free · Designed for iPad. Not verified for macOS.
This is not a virtual pet that behaves "like" a fly. It is a real fruit-fly brain: 139,255 neurons and 2.7 million synaptic connections from the public FlyWire whole-brain connectome, spiking millisecond by millisecond on your phone. Every turn, pause, grooming bout and feeding you see is computed by that real neural network.
You never steer it. You change its world.
Drop the brain into a scout drone, a patrol car, a six-legged worker or a rolling probe and it explores on its own. You walk the cyber laboratory in first person: place a lamp and it comes to the light; place an apple (or a dropping) and it follows the smell; switch on a fan, put down sugar water, press a buzzer, shine your torch at it. Every sense is wired to the fly's real sensory neurons, and the reaction is its own.
The arena wing
Put the same brain into a small fish in a tank with piranhas, or into a beetle, a mantis or a crab facing a wasp in the colosseum. The mantis strikes only when its front feelers are touched, the crab pinches on the side that gets pressed, the beetle never fights back but has a shell. You control the tank lamps, the bait, the tapper, the bell and the opponent settings, then watch how long it lasts.
Up to three brains at once
The incubator grows three complete brains; each one gets its own body and lives independently.
Honesty is the design rule
The screen always shows what its two eyes see, what its nose smells, which descending neurons are firing and how many milliseconds the reaction took. The notebook states, entry by entry, which behaviours come from the neural network, which are declared body reflexes and which are environment rules. It cannot learn, has no motion vision and no emotions, and the app says so.
Technology
FlyWire FAFB v783 connectome, the Shiu et al. 2024 leaky integrate-and-fire model, all neurons computed on the GPU. Works offline. Collects no data.
Ratings & Reviews
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The developer, Jerry Tao, 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
- Jerry Tao
- Size
- 122.1 MB
- Category
- Simulation
- 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
- Age Rating
4+
- 4+
- Copyright
- © 2026 AIBlack