Grasshopper Finder 🦗

Allow the microphone. Then tap Calibrate while the room is quiet (or between chirps), and walk around: red = closer.

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+0 dB

peak +0 dB · max +0 dB

Band level–

Room baseline–

Chirp freq–

Spectrum (green = band)

Level history (last ~15 s)

Band low: Band high: Hot range (dB above room for full red): Peak hold decay:

Calibrate when it's silent, so only the chirp counts as "hot".
When it chirps, tap Lock to chirp — the band narrows to its pitch and ignores other noise.
Hold the phone with the bottom mic pointing out and sweep slowly; follow the peak number.
Move slowly and quietly — they stop when they feel you. Wait, then keep going.
Beep uses a low tone outside the band so it doesn't fool the meter.

🦗 Grasshopper Finder