Notch is a system-wide equalizer and bass booster for all apps on Android. Turn it on once and every app gets the same sound: music, podcasts, videos, and games.

Shape your sound with a 5-band or 7-band EQ, add deep bass, boost volume, and keep it all clean with a built-in limiter and Clip Guard.

MUSIC EQUALIZER
• 5-band or 7-band graphic equalizer, from bass to treble
• Drag a band to boost or cut, tap a value to type it, double-tap to reset
• 11 built-in presets, including Flat, Pure, Smooth, Pop, Warm, Night, Bass Boost, Treble Boost, and V-Shape
• Save your own EQ presets
• Share a preset as a code, or import one from a friend

BASS BOOSTER
• Add deep bass or cut boomy low end
• Pick the bass frequency you want to boost
• Fuller sound at low volume, so music still has weight when you listen quietly

VOLUME AND SOUND BOOSTER
• Raise the overall level up to +6 dB
• Limiter catches sudden peaks before they crackle
• Clip Guard lowers the level a little when EQ and bass boosts would distort
• Louder is fine. Distortion is not.

TREBLE AND CLARITY
• Brighten or soften the top end from the frequency you pick
• Capped so treble never turns sharp or harsh

COMPRESSOR
• Evens out quiet and loud parts so songs and videos feel more consistent
• Auto mode picks good settings for you
• Custom mode for threshold, ratio, attack, and release
• Auto make-up keeps the level steady after compression

HEADPHONE AND BLUETOOTH EQUALIZER
• Virtualizer widens the stereo image on headphones
• Balance shifts sound left or right
• Auto preset switching: link a preset to your headphones or car and Notch loads it when that device connects
• Works with wired, Bluetooth, and USB headphones, Bluetooth speakers, car audio, and your phone speaker

WORKS WITH EVERY APP
Notch processes audio system-wide, so one EQ covers your streaming music app, video apps, podcasts, audiobooks, and games. No root required. Off is a true bypass.

SIMPLE BY DESIGN
• One screen, readable controls, no hidden menus
• Light, dark, beige, and off-white themes
• Keeps your sound on in the background

Every EQ control and effect is included. A one-time purchase removes the banner ad. No subscription.

Notch is an equalizer, bass booster, volume booster, and headphone EQ in one quiet app. Cut what doesn't belong. Keep what does.

Questions or feedback: lowbit.support@gmail.com