Volume Booster - Head Booster

Head Booster makes your phone louder with a single turn of a knob. Is your speaker too quiet for music, movies or podcasts? Turn the big knob past 100% and Head Booster amplifies the sound beyond the system limit — up to 200% (an extra +30 dB of gain) — using Android's built-in audio processing. HOW IT WORKS • 0–100 % — controls the normal system media volume • 100–200 % — keeps volume at max and adds extra amplification • Works system-wide: music apps, video players, streaming, games and browsers FEATURES ✔ Precision hardware-style knob — drag to exactly the level you want ✔ 5-band equalizer with system presets (Rock, Pop, Jazz, Dance...) ✔ Quick presets: OFF, 100%, 150%, MAX ✔ Media volume slider synced with your hardware volume keys ✔ Keeps boosting in the background while you use other apps — with a notification so you always stay in control ✔ Instant stop button in the notification ✔ Dark neon design with a live soundwave ✔ Light and fast — no account, no sign-up ✔ 14 languages, switchable inside the app SAFE FOR YOUR EARS Extra amplification can distort sound and, at very high levels, damage your hearing or small speakers. Head Booster warns you above 120% and caps the boost at a sensible +30 dB. Please use high boost levels responsibly, especially with headphones. NOTES • On a small number of devices the manufacturer's audio stack does not allow system-wide amplification. The app will tell you clearly if that's the case. • Boost applies to media audio (music, video, games). Alarm and ringtone volumes are not changed. • The app shows a small banner at the bottom of the screen.