[bmdpat]
YC S26 · #6 Counter-Swarm Defense

A $500 drone beats a $3M missile.
Defense has to get cheaper, fast.

Record or upload a few seconds of audio. AI reads the spectrogram for drone acoustic signatures. Your phone, as a sensor.

Listen for a drone
Record 5 seconds of audio, upload a clip, or try a synthetic sample. AI reads the spectrogram for rotor and engine signatures.
Or try a synthetic sample
Synthetic samples are programmatically generated. Real-world accuracy varies with mic quality and ambient noise.
Built in public · demo #6 of 16

One developer building a working demo for every YC Summer 2026 Request for Startups. No pitch decks, no waitlists.

Get The One-Person Holdco (free PDF)

How one human plus twenty-two AI agents runs a seven-pillar portfolio with no employees.