LANIAURA apps

Laniaura

English

01

v1.0.0

Two apps · one purchase

Two apps.
One purchase.

Undertone composes sound on your device — nothing else has to be playing. AURA lays a low tone over music you are already playing. Different jobs, one payment.

Get both — $39 once Try Undertone — 30 min free Try AURA — 30 min free

One purchase, two apps, four files. Undertone 0.7.0 and AURA 1.2.0, each for Windows and Android. Neither is finished: you get them early, later builds arrive free at the same address, and they keep improving only while people back the work.

One payment · 14-day full refund, no questions · no account, everything on-device.

AURA needs headphones or earphones — it cannot work through speakers. Undertone works through speakers too.

The AURA app running, showing six modes and a tone-level control.
Fig. 1. Running. September 2026.

02

2 APPS

Which one is which

They are not two versions of the same thing. One makes the sound; the other works on sound that is already there.

ItemUndertoneAURA
What it doesComposes the sound itself, live on your deviceLays a low tone over sound you are already playing
You needNothing else — it is the sourceYour own music, from any app
SpeakersYes, and headphones tooHeadphones only
Choices5 states — Sleep, Meditate, Calm, Focus, Awake6 modes across 0.5–40 Hz
Free trialIn the browser · 30 minutes a sessionIn the browser · 30 minutes a session
Paid editionsWindows · AndroidWindows · Android
PriceUSD 39.00 · once · both apps, all four files

Try Undertone Try AURA

03

0.5-40 Hz

About AURA

Six differences

Each number is the gap between the two frequencies sent to your left and right ear. The larger the gap, the faster the beat.

Fig. 2. The dial runs 0.5–40 Hz; the presets are six points on it.

PRESET 01

2Hz

Sleep

PRESET 02

6Hz

Meditate

PRESET 03

7.83Hz

Calm

PRESET 04

10Hz

Focus

PRESET 05

18Hz

Vitality

PRESET 06

28Hz

Awake

* 7.83 Hz is the same number as the value known as the Schumann resonance.

04

2 CHANNELS

About AURA

A beat is not a tempo.

L: f R: f+Δ L+R Δ = one beat period
Fig. 3. Two sine waves, left and right, and their sum. The lower curve is the beat.

Send slightly different frequencies to each ear and you hear a slow pulse at the difference between them. It has nothing to do with the tempo of the music.

That difference only appears when each side reaches one ear alone. This is why headphones are required.

The tone AURA adds The musicyou are playing outout
Fig. 4. The music layer has the same shape going in and coming out.
server This device Music in Measure range, brightness Set carrier pitch Synthesize tone L/R out
Fig. 5. No line crosses the boundary.

The pitch of the added tone is set by measuring the range and brightness of the music. AURA does not play along with it. All of this happens on your device — there is no path by which your music leaves for a server.

05

4 FILES

Get both.

One payment, two apps, four files — Windows and Android for each. If you want to hear them first, both run free in the browser, 30 minutes at a time.

UndertoneComposes the sound itself. Five states, no recordings, no loops. Works through speakers as well as headphones. Windows and Android included.
Try free for 30 min →
AURALays a low tone over your own music. Six modes, no session limit once paid. Headphones required. Windows and Android included.
Try free for 30 min →
Both$39, paid once. Four files, downloadable the moment you pay. No account, no licence key.
Buy for $39 → · What is included
Free trialsBoth run in the browser with nothing to install. Each session stops after 30 minutes; press play again for another 30.
RequiresWindows 10 or later, 64-bit · Android. Using a Mac? Count me →
EquipmentAURA: headphones or earphones · Undertone: anything
Counted. No date — thank you.

This app is not a medical device. What people hear and feel varies from person to person.