Autonomous Agent Loop
Every 500 ms, the scheduler gives two fleas a thinking turn. They pick from 13 verbs based on traits, mood, memory, relationships, and what's happening on stage. The troupe lives even when no one is watching.
FleaWinder™
A tiny animated circus that lives above your taskbar
Your typing, mouse movement, and clicks power a miniature circus sitting right above your taskbar. Acrobats swing, cannons fire, and the crowd goes wild—all driven by your everyday computer use.
Free for Windows, macOS, iOS & Apple TVThe optional paid license removes the reminder popup and supports an independent creator.
v1.9 — simpler pricing. Free now includes every feature except seasonal packs and the share-card watermark. Supporter ($5 one-time) unlocks both. Patron ($49 one-time) names a flea after you. Existing buyers — your old purchase still counts; you’re mapped to Supporter automatically.
What changed →What Makes v3.0 Different
FleaWinder is the first ambient app where every character is an autonomous on-device agent.
On-Device LLM Dialogue
iPhone and Mac with Apple Intelligence generate every line in real time via Apple's Foundation Models framework — fully on-device, fully private, never sent to a server. Older devices fall back to a 14-outcome deterministic template bank: same agent loop, different surface.
Five-Tier Memory
Each flea accrues immediate / recent / season / long-term / legend memories. Memories evolve and feed back into a seven-day narrative arc the troupe writes about itself each week. Tap any flea to see its inner life.
Cross-Platform Parity
The same agent core runs on iOS, iPadOS, macOS, tvOS, watchOS, visionOS, Windows, and Linux. No 'lite' platforms — Apple TV ambient mode is a first-class showcase.
Seven Live Acts
Tightrope Walker
A daring flea wobbles across the high wire, jolted by every keystroke.
Trapeze Artist
Pendulum physics power death-defying leaps between swinging bars.
Cannon Show
Every mouse click loads and fires the cannon. BANG!
Strongflea
Each keystroke pumps the barbell higher. How high can you go?
Unicycle Rider
Speed and lean respond to your mouse energy in real time.
Juggling Flea
Three balls arc through the air in a mesmerizing cascade powered by your activity.
Fire Breather
A stream of flame erupts with every click—the more energy, the longer the blast.
Unlock the Full Show
Get access to all acts, features, and premium flea performers. Remove the reminder popup, support an independent creator, and enjoy the complete circus experience across all your devices.
One-time purchase. Not a subscription.
How It Works
Turn your workday into a show. FleaWinder™ sits as a transparent strip above your taskbar and turns your typing, clicking, and mouse movement into energy that drives the circus animations.
More activity means more chaos—spinning gears, flying confetti, and a cheering crowd. Step away, and the circus winds down to a gentle idle.
Zero configuration. No accounts. All input stays 100% local—nothing is ever recorded or transmitted. Just run it and enjoy.
A Rich History
Flea circuses have captivated audiences for over 400 years—from 16th-century goldsmiths who harnessed live fleas to demonstrate impossibly tiny metalwork, to Victorian showmen who packed London’s Regent Street with miniature chariot races and cannon shows. FleaWinder™ carries on that tradition, digitally.