Free to download
Sound Amplifier App
It's easy to describe what a sound amplifier app does in the abstract. It's more useful to see it against a specific moment — a dinner table, a TV, a lecture hall — where "louder" and "clearer" turn out to be two different things.
- No extra hardware
- No account needed
- Works with any headphones
- iPhone & Android
Four moments
What actually changes when the app is running
A dinner table with background chatter
You catch most of what's said directly across from you, and guess at the rest from context — nodding through parts you didn't quite hear.
Pointing the phone toward whoever's speaking pulls their voice forward above the table noise, so following the conversation takes less active effort.
TV dialogue under music and effects
Turning the volume up raises the score and sound effects right along with the dialogue, so the mix stays just as hard to follow, only louder.
Aimed at the screen, the same voice-forward processing used in conversation applies here too — dialogue separates from the mix instead of just getting louder with it.
A lecture or presentation from the back row
Distance and room acoustics work against you, and moving seats mid-talk usually isn't an option.
Aiming the phone toward the speaker gives a real, if not perfect, boost — a meaningful improvement over unaided listening at the same distance.
A phone call on a noisy street
Traffic and wind compete directly with the voice on the other end, and there's not much you can do about it mid-call.
This part is honest: outdoor wind is one of the harder cases for any amplifier, this one included — worth knowing rather than discovering the hard way.
This is a general sound amplifier app. It is not a hearing aid and does not diagnose or treat hearing loss.
What it does
Built around what actually helps
Voice separation
Speech gets pulled forward relative to background noise, instead of the whole recording getting louder together.
Three-band EQ
Bass, voice, and treble adjust independently, since a fixed profile suits nobody exactly.
Loud-sound cap
Sudden spikes get capped automatically rather than blasting through at full amplified volume.
No processing lag
Runs live on the device, with no noticeable delay between speech and hearing it amplified.
Offline by default
No connection required to amplify — the internet only matters for the initial download.
Shared subscription
Up to 4 devices on one Premium plan via QR code.
How it works
Three steps, no account required
Plug in headphones
Wired or Bluetooth, whatever's already around — nothing proprietary to buy first.
Point the phone
Toward whoever's talking, or toward a TV or speaker — amplification follows where the microphone is aimed.
Dial in the level
Plus and minus controls appear the moment amplification starts, with the EQ one tap away.
Common searches
What people usually mean by "amplifier app"
"Amplifier app for phone"Usually means turning the phone itself into the amplifying device, rather than buying a separate piece of hardware.
"Best free amplifier app"Free usually means a genuinely usable amount of amplification without paying, not a version crippled until you subscribe.
"Amplifier app for elderly parent"Often set up on someone else's phone — the one-button start and shared 4-device subscription both help with that.
"Amplify TV without a soundbar"A frequent case — pointing the phone at the screen usually helps more than another notch of TV volume.
Real feedback
Reviewed by real users, not by us
App Store
Read what iPhone and iPad users say after trying it, straight from Apple's own listing.
See App Store reviews →Google Play
Read what Android users say after trying it, straight from Google's own listing.
See Google Play reviews →FAQ
Questions about sound amplifier apps in general
Is a sound amplifier app the same as a hearing aid?
No. It's a general tool for making sound louder and clearer, not a regulated medical device fitted to a diagnosed hearing loss.
Why does it need headphones instead of the speaker?
Playing amplified sound out of the same phone that's recording it creates feedback. Headphones — wired or Bluetooth — avoid that loop entirely.
Does it work equally well everywhere?
No — it's strongest one-on-one or aimed at a single source like a TV, and weaker outdoors in wind or with several people talking at once.
Is the free version actually usable?
Yes — three real listening sessions of 15 seconds each, every day, with no account required.
Does it need an internet connection?
No. Amplification runs entirely on the phone. A connection only matters for the download or an optional subscription.
Is any audio recorded or stored?
No. Sound passes through the app in real time and is never recorded, saved, or uploaded.
Can I share one subscription with family?
Yes — a Premium subscription covers up to 4 devices through a QR code.
Does it work on both iPhone and Android?
Yes, with the same core features on both the App Store and Google Play versions.
See the difference for yourself
No account, no prescription, no hidden catch to the free tier.