# Halcyon: Deep sleep sounds — Soundscapes for deep sleep

> Soundscapes for deep sleep (iPhone/iPad app by Bogdan Tsiganiuk.)

- Source: https://appshunter.io/ios/app/halcyon-deep-sleep-sounds/id6791122312 (this page in markdown: same URL + `.md`)
- Developer: [Bogdan Tsiganiuk](https://appshunter.io/developer/6791122314)
- Category: Health & Fitness, Lifestyle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16.4 · 171 MB
- Languages: Arabic, English, French, Korean, Portuguese, Russian, Chinese, Spanish, Chinese, Vietnamese
- Released: 2026-08-18
- Data updated: 2026-09-08
- User reviews in markdown: https://appshunter.io/ios/app/halcyon-deep-sleep-sounds/id6791122312/reviews.md

## What is Halcyon?

Halcyon helps you fall asleep, relax, and focus with soothing sounds you can mix your own way — plus guided wind-downs, narrated sleep stories, and breathing exercises to quiet a busy mind.

MIX YOUR PERFECT SOUND
Layer any of 19 high-quality sounds and set each one's volume to build the exact soundscape you like. Rain over a distant campfire. Ocean waves under soft wind. A fan with gentle night crickets. Save your favorite mixes and bring them back with one tap.

• Nature — rain, wind, campfire, night, storm, forest birds
• Water — ocean waves, stream, waterfall
• Noise — white, pink, and brown noise
• Comfort & ambience — fan, café, train, heartbeat
• Frequencies — delta, theta, and alpha tones (headphones recommended)

GUIDED SLEEP & CALM
• 10 sleep and relaxation guides — wind down, body scan, letting go, and more
• 5 original sleep stories written to drift you off, narrated in a choice of calm, natural voices
• Box, 4-7-8, and coherent breathing exercises to slow your breath and settle your mind

BUILT FOR SLEEP
• Sleep timer that fades gently to silence — it won't jolt you awake
• Background playback keeps sounds going with the screen off
• Lock-screen and Control Center controls
• A calm, dark interface designed for the end of the day
• Adaptive soundscapes that softly drift over time so the sound never feels static

HALCYON PREMIUM
Unlock the full experience with a subscription:
• All 19 sounds, with unlimited layers in a single mix
• Save as many mixes as you like
• All 10 sleep guides and all 5 sleep stories
• Read-aloud narration in a choice of four calm, natural voices
• Adaptive soundscapes across the whole library

Start with a 7-day free trial on the annual plan. Subscriptions renew automatically unless cancelled at least 24 hours before the period ends; manage or cancel anytime in your App Store settings. Payment is charged to your Apple ID. Any unused portion of a free trial is forfeited when you buy a subscription.

Terms: https://bogtsi.xyz/noctura/terms
Privacy: https://bogtsi.xyz/noctura/privacy

Sweet dreams.

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Halcyon Premium (Monthly) | $4.99 | per month |
| Halcyon Premium (Annual) | $39.99 | per year |



## Version history (last 3 releases)

### 1.2.0 — 2026-09-05

• Rate Halcyon from Settings. If we ever ask for a review, it is only after you finish a breathing exercise — never while you are drifting off.
• Under-the-hood updates and stability improvements.

Same sounds, stories, guides and breathing exercises you already know.

### 1.1.0 — 2026-08-24

A completely redesigned Halcyon. A calmer, deeper night-sky look with a new icon, clearer sound tiles, a refreshed player, and better readability at every text size. Same sounds, stories, and breathing exercises - now easier on the eyes at 2am.

### 1.0 — 2026-08-18

No release notes.

## More apps by Bogdan Tsiganiuk

- [Posture Coaching: Slouch Fix](https://appshunter.io/ios/app/posture-coaching-slouch-fix/id6791312375)
- [Ascend: RPG Weight Tracker](https://appshunter.io/ios/app/ascend-rpg-weight-tracker/id6791695056)
- [Dahlia: Date Night Ideas](https://appshunter.io/ios/app/dahlia-date-night-ideas/id6791726428)
- [Brightwater: Aquarium Care](https://appshunter.io/ios/app/brightwater-aquarium-care/id6794113463)
- [Shiver - Cold Showers](https://appshunter.io/ios/app/shiver-cold-showers/id6794118680)

All apps by Bogdan Tsiganiuk: https://appshunter.io/developer/6791122314

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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 2026-09-08.*