Radio Volume Booster is a free iPhone application developed by IT4YOU CORP. It falls under the category of Multimedia, specifically Music & Radio. This program is designed to provide amplified sound for individuals with hearing loss, functioning as an assistive hearing aid for listening to the radio.

With Radio Volume Booster, users can enhance the volume of their smartphone's sound, focusing on frequencies where there is hearing loss. By amplifying the sound only in those specific frequencies, this application aims to restore the natural hearing perception of music and other audio content.

To ensure optimal adjustment of the assistive hearing aid radio, users are encouraged to take a preliminary hearing test in the "PETRALEX Hearing Aid" app, which is also developed by IT4YOU CORP.