Volume Bass Booster, Equalizer

Review by eFreeware

Volume Bass Booster, Equalizer is a free Android app from ZANKHANA PTE LTD, filed under Music & Audio. It bundles three related tools into one place: a bass booster, a music equalizer and a volume booster, with the stated goal of making sound on a phone, speaker or headphones louder and fuller. The main reason to consider it is convenience. Instead of hunting through system settings or juggling separate utilities, you get the controls that shape low-end punch and overall loudness in a single app, along with a few extras that make it pleasant to keep open while music plays.

The numbers behind it are strong for a utility of this type: more than 10 million installs and a 4.8 average across nearly 55,000 ratings, with the first release in April 2024 and an update in August 2026. Those figures suggest a tool that a lot of people have tried and kept. It is free to download and supported by ads, with in-app purchases available as well.

The volume boost and what it promises

The feature the developer leads with is the volume booster, which is described as amplifying your system volume by up to 200%. That is the headline claim, and it is the sort of thing worth treating as a target rather than a guarantee: how much extra loudness you actually get will depend on your phone, your output device and whatever ceiling the hardware imposes. The developer also says the boost applies whether you are listening through speakers or a headset and that it works for music, video and games, all without compromising sound quality.

What appeals to me about framing it this way is the one-tap angle. A lot of audio tweaking involves menus and guesswork; here the pitch is that you press once and the output gets louder. For someone who mostly wants a stubbornly quiet phone or Bluetooth speaker to push a bit harder, that is the most direct part of the package.

The honest caveat is the 200% figure itself. Volume boosts on Android run into the limits of the device and the file being played, and a percentage in a store description rarely translates neatly into perceived loudness. I would treat the number as the developer's ambition, not a measurement you can count on in every setup.

Equalizer, bass and virtualizer

The equalizer side is where the app has the most depth. You can switch between a 10-band and a 5-band equalizer depending on how much control you want, and there are more than 20 preset effects covering styles such as classical, dance, folk, heavy metal and hip hop. If none of the presets fits, you can build a custom music effect to suit your own taste. That combination of a coarse and a fine mode is sensible: five bands are quicker to adjust on a small screen, while ten bands give you more room to shape specific frequencies.

The bass booster sits alongside that, adjusted by rotating a button rather than typing in numbers, which should make it easy to dial in by ear. There is also a 3D virtualizer for a wider, more spacious presentation. Between the presets, the custom curve, the bass dial and the virtualizer, there is enough here to change the character of a track noticeably, not just its loudness.

I would expect most people to settle on one or two presets and a bass level they like, then leave it alone. The value is in that initial shaping: a phone speaker that sounds thin, or headphones that need a lift in the low end, can be nudged toward something more enjoyable without needing a separate player with its own DSP.

Extras that make it easier to live with

Beyond the core sound tools, the app adds a handful of conveniences. There are home screen widgets and notification bar controls for quick access, so you can reach the main adjustments without opening the full interface. Background and lock screen support means playback and effects continue while the app is not in the foreground, which matters if you are listening with the screen off.

There is also a built-in music player control panel. It shows song covers, titles and artists, and lets you play or pause and move between tracks without leaving the app. That is a small thing, but it keeps the whole listening session in one place rather than forcing you to bounce between the booster and your usual player.

The visual side is covered too, with edge lighting and a sound spectrum that pulse along with the beat. It is decorative rather than functional, and whether you keep it on will come down to taste, but it gives the app some personality while it is open on screen. The developer rounds this out by describing the interface as user-friendly, which is the kind of thing you can only judge once you have it in front of you.

What it asks of you

The app is free to download and carries a content rating of Everyone. It contains ads and offers in-app purchases, so the straightforward reading is that you get the tool at no cost and the developer earns from advertising and optional spending inside the app.

On the hardware side, the developer positions it for phones, speakers and headphones alike, which means it is not tied to one output. The volume boost itself is framed as a system-level effect, so the results you hear will always be a conversation between the app and your particular hardware.

There is a feedback address, [email protected], for questions and suggestions. That is a useful detail for a utility like this, since audio behavior varies so much from one device to the next and a direct line to the developer is more helpful than a generic support form.

Getting useful results from it

My advice would be to start with a preset rather than a custom curve. Pick the one closest to what you are listening to, live with it for a while, and only then move to the 10-band mode if something still bothers you. Presets exist precisely so you do not have to know which frequency band needs lifting, and the genre labels make the first choice fairly intuitive.

Adjust the bass in small steps. A rotating control invites big turns, but low-end boosts pile up quickly and can make everything else sound muddy. The same applies to the volume boost: it is most useful as a corrective for quiet sources, not as a setting to leave pinned at maximum for every track. If you use the virtualizer, try it separately from a heavy bass boost so you can hear what each one is contributing.

For convenience, the widgets and notification controls are the parts I would set up first, since they turn the app from something you open into something you adjust in passing. If you prefer the screen dark while listening, the background and lock screen support means you can set your sound and then forget about it. And if a particular combination of settings misbehaves on your device, the feedback email is the sensible route.

A straightforward pick for louder, fuller phone audio

Volume Bass Booster, Equalizer does one job in three parts: it makes Android audio louder, bassier and more adjustable. The equalizer is the strongest element, with 10-band and 5-band modes, more than 20 presets and a custom option, backed by a bass booster, a 3D virtualizer and a volume booster that the developer bills as reaching up to 200%. The widgets, notification controls, lock screen support and built-in player controls make it convenient to keep around.

It is best suited to listeners who want visible, hands-on control over how their phone, speaker or headphones sound, and who are comfortable with a free app that carries ads and in-app purchases. If you want a single tap that solves a quiet speaker, the volume booster is the direct route; if you enjoy shaping sound, the equalizer gives you room to work. Given the install count and the 4.8 average, plenty of users have found it worth keeping on their phones.