# Focus & Sleep: Onkei — Nature, Fan, White Noise, Rain

> Focus timer, sleep sounds, sleep tracking, and guided breathwork for productivity and rest. (iPhone/iPad app by Valentin Dreyfus.)

- Source: https://appshunter.io/ios/app/focus-and-sleep-onkei/id6740409947 (this page in markdown: same URL + `.md`)
- Developer: [Valentin Dreyfus](https://appshunter.io/developer/1710589551)
- Category: Lifestyle, Health & Fitness
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.1 · 71 MB
- Languages: American English
- Released: 2025-01-16
- Data updated: 2026-08-24
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/focus-and-sleep-onkei/id6740409947/reviews.md

## What is Focus & Sleep?

Fall asleep faster. Focus deeper. Breathe better.
Onkei combines a Pomodoro focus timer with calming nature sounds, sleep tracking, and guided breathwork, everything you need to be more productive and rest more deeply.

FOCUS & PRODUCTIVITY
  • Pomodoro timer with customizable work/break intervals
  • Ambient soundscapes designed for deep concentration
  • Track your focus sessions and build better habits

  SLEEP & RELAXATION
  • Soothing sounds: rain, ocean waves, waterfall, and more
  • Sleep tracking to understand your rest patterns
  • Wind-down routines to prepare your mind for sleep

  BREATHWORK & MINDFULNESS
  • Box breathing and guided breathing exercises
  • Zen-inspired mindfulness sessions
  • Calm your mind in minutes

Some Features require a subscription.
- Privacy Policy: https://sa-moo-rai.com/about
- Terms of Service: https://www.apple.com/legal/internet-services/itunes/

## Key features

- Pomodoro focus timer
- Ambient nature soundscapes
- Sleep tracking
- Guided breathwork exercises
- Mindfulness sessions
- Customizable intervals

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Weekly Premium | $5.99 | per 7 days |
| Yearly Premium | $19.99 | per year |
| Premium 1 month | $7.49 | per month |
| Special Promotion | $5.49 | per month |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/focus-and-sleep-onkei/id6740409947/reviews.md

### 5/5 — Add background play

*2026-08-13*

Great app and ui. But add background play, audio pauses when leaving app

## Frequently asked questions about Focus & Sleep

### What is Onkei?

Onkei is a lifestyle app that combines a Pomodoro focus timer with nature sounds, sleep tracking, and guided breathwork to help users improve focus, productivity, and sleep quality.

### Does Onkei have ads?

No, Onkei does not contain advertisements. The app is free to download and offers premium features through a subscription.

### What are the subscription options for Onkei?

Onkei offers several subscription plans including a Weekly Premium with a 3-day free trial for $5.99, a Premium 1-month plan for $7.49, and a Yearly Premium plan for $19.99. There is also a Special Promotion at $5.49/month.

### What devices does Onkei support?

Currently, Onkei is supported on iPhone devices.

### How often is Onkei updated?

The latest version of Onkei is 2.1.3, and it was last updated on August 11, 2026. Updates typically occur to introduce new features or improve existing ones.

### What age rating does Onkei have?

Onkei has an age rating of 4+, making it suitable for a wide range of users.

### Can I track my sleep with Onkei?

Yes, Onkei includes sleep tracking features to help you understand your rest patterns. This feature contributes to the app's goal of promoting deeper rest.

### What kind of breathing exercises are available in Onkei?

Onkei offers guided breathing exercises, including box breathing, and Zen-inspired mindfulness sessions to help users calm their minds.

## Version history (last 5 releases)

### 2.1.4 — 2026-08-15

* Sound can now be played in the background.
* You can now activate a guiding voice for breathing exercises.
* Bug fixes & performance improvements.

### 2.1.3 — 2026-08-11

Bug fixes & performance improvements.

### 2.1.2 — 2026-04-02

Bug fixes & performance improvements.

### 2.1.1 — 2026-02-26

Bug fixes & performance improvements.

### 2.1.0 — 2026-01-15

Bug fixes & performance improvements.

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## More apps by Valentin Dreyfus

- [Cosmic Clash - Arcade Game](https://appshunter.io/ios/app/cosmic-clash-arcade-game/id6468811261)
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- [Private AI : Nivon](https://appshunter.io/ios/app/private-ai-nivon/id6612043041)
- [Delivery Game - Noshio](https://appshunter.io/ios/app/delivery-game-noshio/id6658784972)

All apps by Valentin Dreyfus: https://appshunter.io/developer/1710589551

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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 2026-08-24.*