Try this new style volume booster. It will increase your speakers volume up to 10-20%. What sets Volume Booster Black Edition from other similar applications is that when a user activates boost this app not only amplifies the sound to the end, but also uses the built-in Android equalizer to optimize the frequency channels by means of a special algorithm.
A free .apk file of Volume Booster Black Edition 1.3.5 is available from Droid Informer and you can check out users' reviews on this site. Prepare 3 MB of free space on your device for this app installer and take into account that it requires Android 4.4 and above. According to the antivirus report, the app doesn't contain viruses or any kind of malware. Hundred Five Solutions is the creator of this application which relates to the Music & Audio category.
The developer released a new version of the tool on Oct 12, 2020 and over 1M users downloaded and set up Volume Booster Black Edition. The overall user rating of the app is 4.4. There are advertisements in this application.