“Bad — Bad too many ads”
Public review signal · 143 reviews scanned · scope limited to review patterns.
4.3 ★7,342 ratings
—Downloads
4+Age rating
245 MBApp size
Free · In-app purchasesIn-app purchases
About this app
Volume booster is a simple, small but powerful app to boost volume of your phone and tablet to extra volume. Useful for movies, audio books, music and games. Volume booster can increase volume of all media, including music, video, ringtone, alarm volume and etc.
Brilliant features of Volume Booster: - Bass booster & 3D virtualizer effect - 10-band Equalizer with 20+ preset effects - Enhance the volume without affecting the sound quality - A sound booster for headphones, Bluetooth & speakers - Wonderful visual sound spectrum - Pleasant stereo surround sound effects - Stylish & simple user interface - No root required
Note: To get the best results, pair this app with your best headphones. If you don’t have a pair of headphones or if you want to use a speaker, you can still enjoy good music with our app.…
Preview
Real screenshots from the store listing.
Independent evidence report
Evidence and review signals
This is where the page changes from an app-store listing into an evidence report: findings, important reviews, pricing and a dated history.
What we measured
Each line is a measurement published as a measurement, never a verdict.
Each line is a measurement, published as a measurement. Where we have not looked, the line says so rather than reading as a zero.
Developer replies to reviews
Replies to fewer than 1 review in 20
Price in the store description
States a price and a billing period
Cancelling, in the store description
Says how to cancel
Themes reported by reviewers
No theme reported
Counted from the reviews we have read for this app. "No theme reported" means no theme reached our reporting threshold — it is not a finding that nothing is wrong with this app, and we do not say it is.
Five-star share of ratings
65–79% five-star
Arithmetic on the stores' own published rating counts. It says nothing about why the ratings fall where they do.
In the package we scanned
No package has been scanned for this app, so nothing is published about what it ships. That is an absence of evidence about the app, not a finding about it.
Graded bands · predicate set 1.4 · how these are measured
What the analysis found
App-specific findings, grouped by what each one rests on. How they are graded lives on its own page.
Aggressive ad load17 reviews · user report
Highlighted reviews
Representative public review excerpts shown as user reports, not Appworthy audit evidence.
“Way too many ads — They show too many ads. And they don’t sync your Apple music right, because it didn’t show any songs. It only showed playlists with zero songs in them.”
“WORST APP — HORRIBLE! Wants me to pay to use the equalizer, and its just a ahh interface, too many ads and i recommend using a PC instead of this”
Assessment & version history
App changes and Appworthy events in one timeline.
Store listing updated to version 1.4.4.
What this app sells
Useful store-disclosed pricing, kept below the app listing.
Items shown4
Lowest$4.99
Highest$29.99
Volume Booster Subscription$9.99
Volume Booster Premium$4.99
Volume Booster Premium$29.99
Bass Booster Premium$9.99