Boo: Speaker Cleaner

Boo is a simple speaker cleaner and sound test app. Play gentle test tones through your phone speaker, listen for changes in sound, and use the guided routines when your audio sounds muffled, quiet or crackly. WHY PEOPLE TRY BOO • Speaker cleaner tones: low-frequency sound routines that some people use to help move loose dust out of the speaker grille • Water eject mode: a short tone routine designed to help shake a little water out of the speaker after a splash • Sound test: play low, mid and high tones, sweep through frequencies, and compare by ear • One-tap start: pick Dust or Water, check the quick tips, and press Start Cleaning • Works offline: no account, no sign-up, no ads, no data collection • Clean, simple design with a welcome animation every time you open the app HOW IT WORKS 1. Remove the case and dry the phone. 2. Face the speaker downward and set a comfortable volume. 3. Choose Dust or Water and press Start Cleaning. 4. Open the Test tab and compare the sound before and after. OPTIONAL REMINDERS Turn on gentle reminders to run a quick cleaning routine on a schedule you choose. Notifications are optional and only used when you enable reminders. GOOD TO KNOW • Boo plays sound only. It cannot repair a damaged speaker or guarantee that dust or water will be removed. • Results vary by phone model and by how much debris is stuck. • Keep the volume comfortable. Do not hold the speaker against your ear while a tone plays. • If your speaker is still muffled after a few tries, clean it gently with a soft dry brush or visit a repair shop. Questions or ideas? Tap Send feedback inside the app or email [email protected].

Boo now has a new look inside the app, 3 sound styles each for Dust and Water routines, sound and reminder choices during setup, and a new animated player screen.