VolumeBooster＋

Turn quiet, muddy or uneven recordings into audio you can actually hear. Import a file, pick a profile, and hear the difference instantly — then export the result and keep it.

WHAT IT DOES

• A fourteen-band equalizer, a compressor and a safety limiter working together
• Adjustable enhancement from 10% to 200%, with instant before/after comparison
• 14 ready-made profiles for speech, music, movies, lectures, podcasts and more
• Build, name and save your own profiles

AUDIO FILES

• Import from Files and enhance any audio you own
• Real waveform display with zoom and precise trimming
• Preview every change live before committing to it
• Export to M4A, WAV or CAF, with optional normalization and mono conversion

VIDEO

• Enhance the audio track inside videos you own
• The picture is copied untouched — only the sound is rebuilt
• Trim first, then save the finished video back to your library

MUSIC PLAYER

• Play audio files you have added, through any profile
• Live equalizer and bass control while the track plays

TOOLS

• Convert between audio formats
• Extract the audio from a video
• Process a queue of files in one run
• Normalize a quiet file to a target level
• Detect and trim silence from the start and end
• Merge several files into one

WHAT IT CANNOT DO Being straightforward about this matters more than a longer feature list. This app works on audio you give it: files you import, videos you own. It cannot change the sound of other apps, it cannot push your device past its maximum output level, and it cannot affect phone calls.

PRIVATE BY DESIGN All processing happens on your device using Apple's audio frameworks. There is no network code in this app — nothing is uploaded, and there is no analytics or tracking of any kind.

Subscription Terms:

• The app offers auto-renewing subscriptions.
• Payment will be charged to your Apple ID account at confirmation of purchase.
• Your subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current billing period.
• Your account will be charged for renewal within 24 hours before the end of the current period. The renewal price will be shown before the charge is processed.
• You can manage your subscription and turn off auto-renewal at any time in your App Store account settings after purchase.
• If a free trial is offered, it will automatically renew into a paid subscription unless canceled at least 24 hours before the end of the trial period.
• Any unused portion of a free trial, if offered, will be forfeited when you purchase a subscription.

Terms of Use: https://telegra.ph/Apps-Term-Of-Use-08-10 Privacy Policy: https://telegra.ph/apps-privacy-policy-08-10