PulseRepel
PulseRepel turns your phone into an ultrasonic repeller and a precise frequency generator. A single screen gives you a 0.1 to 24 kHz slider and seven ready-made presets - mosquito, fly, insect, rodent, dog, cat and bird - plus an all-night mode, a panic siren for aggressive dogs and a microphone-based speaker calibration that measures what your device can really emit. PulseRepel works fully offline, keeps no account, and is honest about the limits of ultrasonic repellents.
Key Features
Everything you need, nothing you don't
Frequency Generator 0.1-24 kHz
Manual slider plus seven animal presets and sine, square and sawtooth waveforms.
Panic Siren
One tap fires a 30-second max-volume siren with ultrasonic blasts, strobe and vibration. No ad ever blocks this button.
Speaker Calibration
Uses the microphone to measure the highest frequency your speaker truly produces, then adapts every preset to that ceiling.
All-night & Background Run
A wide ultrasonic sweep that keeps playing while the screen is off, via a foreground service.
Fully Offline
No account, no full-screen ads, one small banner. Everything works without a connection.
Free, in 88 Languages
Free to use with a single banner ad, with a language picker on the main screen.
Technical Details
Privacy
No data collection, no tracking
Offline Mode
Works without internet connection
Languages
88 languages
Platform
Android 6.0 and above