FREE HEARING
CORRECTION

Full-spectrum, calibrated, and yours to keep.

Take the FullScale hearing test, get your exact hearing profile, and let ARIA ONE correct everything you listen to. The test is free, the correction is free, and the free tier never expires.

Paying does not make your profile more accurate. The free test measures up to 37 frequencies per ear from 125 Hz to 20 kHz and produces the same personalized curve at every tier. A full ARIA ONE license buys the bigger engine around that curve, not a better measurement of your ears.

Free on macOS, Windows, iOS, and Android. On iOS and Android nothing is gated at all — the mobile app runs the complete feature set at no cost.

Download on TestFlight Get it on Google Play
ARIA ONE advanced metering and gain reduction analysis ARIA ONE hearing EQ with active audio metering
ARIA ONE plugin hero view
WHAT FREE ACTUALLY MEANS

ARIA ONE Free is a licensed tier, not a trial and not a teaser. These are the terms it comes with. The full capability comparison is at the bottom of this page.

It Never Expires

There is no countdown and no nag screen. Nothing switches off, ever.

Everything For 30 Days

Every new account starts with the complete feature set. When that ends, ARIA ONE continues on the Free tier instead of locking.

Works Offline

It keeps working offline indefinitely. No permanent connection to keep listening.

Mobile Is Fully Unlocked

Free on macOS, Windows, iOS and Android. On iOS and Android the full feature set is included at no cost.

Advanced View Is Not Gated

The view toggle is not gated. Free reaches the same 400+ parameter interface a license does.

Crossfeed And Corrective EQ Are Free

Both are free standalone apps. What a license buys is integration: one chain and one profile instead of three programs and a virtual audio driver.

wave pattern
ARIA ONE onboarding — choose your path to personalized audio
30 DAYS OF EVERYTHING.
THEN FREE, NOT OFF.

A new ARIA ONE account starts on the Demo tier with the complete feature set for 30 days, once per account. When it ends, ARIA ONE does not lock, nag, or go silent. It resolves to the Free tier on the next launch and keeps playing.

1.
Demo — 30 Days — The complete feature set, one time per account.
2.
Free — Permanent — Hearing test, hearing correction, core engine, graphs, and presets. Never expires.
3.
Paid — Permanent — The complete feature set back, on up to 5 machines.

Your license lives on your machine. Free and paid both work offline indefinitely with no re-verification. The only thing that expires is your sign-in session, after about 90 days.

See everything a full ARIA ONE license unlocks.
Glow phone hands guy
FullScale hearing test in progress — frequency detection at 1000 Hz FullScale hearing test in Simple View — mobile-friendly layout
THE TEST IS THE PART
WE GIVE AWAY

Full-spectrum hearing measurement is the hard part, and it is free at every tier. FullScale measures up to 37 frequencies per ear from 125 Hz to 20 kHz and reports your threshold at each one.

Pick your path during setup:

•
Full Accuracy — 15 minutes. The complete calibrated test, for the best result.
•
Quick Results — 8 minutes. Skips setup and runs the full test.
•
Instant — immediate. Skips testing and uses an age-matched characteristic profile so you can hear the system right away.

Instant borrows a characteristic profile; on the free tier that borrow lasts 30 days. A profile from your own test is permanent.

EXPLORE FULLSCALE
Acoustic speakers background

FREE VS FULL LICENSE

The hearing test and the correction are free at every tier. A license buys the engine built around your profile.

FREE
ARIA ONE $99.00 $69.00
FullScale hearing test — up to 37 frequencies per ear, 125 Hz to 20 kHz
✓
✓
Personalized hearing correction — profiles, dual-profile blending, multi-band editors
✓
✓
Graphs, metering and analysis — FFT, spectrogram, waveform, vectorscope, loudness
✓
✓
Audio player, library, playlists and profile sync
✓
✓
Limiter algorithms
SIMPLE wideband
ARIA PASS1, SIMPLE, STANDARD, ENHANCED
Lookahead
1 sample
Full lookahead
Multiband limiting, second limiter stage, auto-output and safety stages
—
✓
Correction filter rendering
SOS IIR
SOS IIR and FIR convolution
FIR phase (linear and minimum) and filter length to 65,536
—
✓
Correction oversampling
Native rate
Up to 8× (352/384 kHz)
Crossfeed, integrated into the chain
—
✓
Corrective EQ, integrated into the chain
—
✓
ARIA AI — preset generation and guided tutorials
—
✓

DOWNLOADS

Version V0.9.5
Mac (Apple Silicon)
Mac (x86 / Intel)
Windows

macOS includes Standalone, AU, AUv3, VST3, and AAX. Windows includes Standalone, VST3, and AAX.

Mac AUv2 Plugin

Optional Version V0.9.5

The standard installer above already includes the current macOS plugin formats listed in Technical Specs. Install an AUv2 build below only if your host application specifically requires AUv2 — for example, SoundSource by Rogue Amoeba.

Important: macOS allows only one Audio Unit version of ARIA ONE on a system at a time. Installing the AUv2 plugin will replace any existing AUv3 install of ARIA ONE, and vice versa. The standalone app and VST3 plugin are unaffected.

Mac AUv2 (Apple Silicon)
Mac AUv2 (x86 / Intel)

USER MANUAL

VIEW COMPLETE USER MANUAL