Lost your phone? Clap twice.

Hoolu makes your phone ring, flash and vibrate when you clap twice or whistle, even with the screen off. Under a cushion, in a bag, in another room: found in seconds.

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Android 8+ · iPhone · 11 languages · No ads · 7-day free trial, then a yearly subscription

Hoolu never records what it hears. Sound is analysed on your phone, a second at a time, only to recognise a clap or a whistle. Nothing is stored or sent. No account, no email address. Privacy policy

Features

Everything you need to find your phone

Clap twice or whistle

Hoolu recognises a double clap and a whistle, and ignores most everyday noises.

Rings, flashes, vibrates

Your phone rings at the volume you choose, with the flashlight and vibration, until you stop it.

Works with the screen off

Hoolu keeps listening in the background, and quiet hours keep it silent at night or in meetings.

Motion guard

Arm it on a café table: your phone sounds an alert as soon as someone picks it up.

30 sounds

Pick the sound you will recognise from another room, and make it your ringtone if you like it.

Tuned to your home

Choose how easily it hears you, how long it rings, and whether it pauses while you use your phone.

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