flyOS
A fruit fly in your pocket
Only for iPhone
$19.99 · Designed for iPhone. Not verified for macOS.
iPhone
A real connectome runs live on your phone and controls a fruit fly standing in your room. Watch its actual brain fire, neuron by neuron, in the DEBUG drawer.
flyOS puts a real fruit fly in your room.
Not an animation, not a preset loop — a real connectome, computed live on your iPhone from actual fly brain data. Point your camera at your desk, your floor, your kitchen table, and a fruit fly stands there: walking, flying, reacting, all driven by a spiking neural network built from real connectome wiring.
HOW IT WORKS
Open the DEBUG drawer at any moment to watch the fly's actual brain: a rotating atlas of its neurons, each one lighting up white the instant its population fires. Below it, live numbers — how many neurons exist, how many just fired, how far ahead of real time the simulation is running. This isn't a mockup of brain activity. It's the real thing, computed in real time, on your phone.
Circuits run continuously underneath: a circadian clock that tracks day and night, vision that watches for motion and looming threats, taste and feeding drives, wind sensing through antennal hearing, a compass for orientation, and the premotor circuits that turn all of it into wingbeats and footsteps.
SELFIE MODE
Flip to the front camera and the fly settles into an orbit around you for a portrait — its brain paused, the camera watching your face instead of your room.
CAPTURE
Tap the shutter to save a moment with your fly. Every capture stays on your phone; saving to Photos or sharing is the only way anything ever leaves your device.
PRIVACY, ACTUALLY
flyOS has no account, no backend server, no analytics, and no ads. Camera frames are processed in memory and never stored. Nothing about your room, your face, or your fly ever leaves your phone unless you choose to save or share a photo.
flyOS is built by Mythical Creature, LLC, grounded in real connectome research on the fruit fly nervous system.
The developer, Mythical Creature, LLC, 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
- Mythical Creature, LLC
- Size
- 48.4 MB
- Category
- Entertainment
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Age Rating
4+
- 4+
- Copyright
- © 2026 Mythical Creature, LLC

