# Shiosai: Binaural Beats — Isochronic Tones, Sleep, Focus

> Isochronic Tones, Sleep, Focus (iPhone/iPad app by NICOLAS AMORETTI.)

- Source: https://appshunter.io/ios/app/shiosai-binaural-beats/id6826929086 (this page in markdown: same URL + `.md`)
- Developer: [NICOLAS AMORETTI](https://appshunter.io/developer/1886777321)
- Category: Health & Fitness
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 13 MB
- Languages: American English, Korean, European Spanish, Brazilian Portuguese, Swedish
- Released: 2026-10-30
- Data updated: 2026-11-02

## What is Shiosai?

Binaural beats, isochronic tones and soothing sounds for relaxing, focusing and falling asleep. Every sound is made on your iPhone as you listen, with Hokusai's prints of the sea and Mount Fuji around it.

SIX SESSIONS
• Deep sleep: settles from 10 to 2.5 Hz over twenty minutes, then stays there
• Power nap: down to 5 Hz, then back up to 12 Hz so you wake up clear
• Meditation: holds 6 Hz
• Calm: rests at 10 Hz
• Focus: rises to 16 Hz
• 40 Hz: steady pulses

FIVE SOUNDS
Ocean surf, rain, brown, pink and white noise. Play one on its own or under any session.

HEADPHONES OR SPEAKER
Binaural beats need headphones: each ear hears its own tone and the beat forms between them. No headphones? Shiosai switches to isochronic tones, a single tone that pulses, which works on the speaker. Unplug your headphones and it pauses.

MADE FOR THE NIGHT
• A sleep timer that fades out gently
• Plays with the screen locked, with lock screen controls
• Every change is smooth: no clicks, no jumps

PRIVATE
No account, no ads, no tracking. Nothing is recorded, sent or collected.

BEFORE YOU LISTEN
Use headphones at a low volume. Don't listen while driving or doing anything that needs your attention. If you have epilepsy or a history of seizures, ask your doctor first. Shiosai is for relaxation and is not a medical treatment.

SHIOSAI PRO
Your first session is free. Shiosai Pro unlocks every session and sound: weekly, or yearly with a 3-day free trial. Payment is charged to your Apple Account. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period; manage them in your Apple Account settings.

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy: https://nikoamoretti.github.io/shiosai-legal/privacy.html

Prints: Katsushika Hokusai, Thirty-six Views of Mount Fuji, about 1830, Art Institute of Chicago (public domain).

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Shiosai Pro Yearly | $29.99 | per year |
| Shiosai Pro Weekly | $3.99 | per 7 days |


## Is Shiosai safe?

Not enough ratings yet to assess Shiosai.

## Is Shiosai legit?

Shiosai: Binaural Beats appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Shiosai is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-10-30

No release notes.

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- [Namiluna: PCOS Tracker](https://appshunter.io/ios/app/namiluna-pcos-tracker/id6826929843)

All apps by NICOLAS AMORETTI: https://appshunter.io/developer/1886777321

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-02.*