すばやく！40hz再生集中
Lifestyle
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Quick 40Hz Focus is an easy-to-use focus tone player app ideal for working, studying, reading, or taking a break.
Simply open the app, select the frequency mode that suits your goal, and press play. With its simple controls, you can instantly dive into your focus time.
It features 4 frequency modes:
* **Alpha (10Hz):** For when you want to calm down or work while feeling relaxed.
* **Beta (20Hz):** For when you want to shift your mood and start light work or studying.
* **Gamma (40Hz):** For when you want to focus deeply on your tasks or clear your mind.
* **Theta (6Hz):** For when you want to take it easy, such as during breaks, meditation, or right before bed.
The timer can be set anywhere from 1 to 60 minutes, and it also includes convenient 5, 10, 15, and 30-minute presets. You can effortlessly adjust it to perfectly match your work sessions or break intervals.
During playback, a large circular dial clearly displays the current frequency, allowing for intuitive play, pause, and stop controls. The dark neon design makes the screen easy on the eyes, making it perfect for nighttime use or highly focused environments.
It also supports both Japanese and English displays.
### Main Features
* 4 frequency modes
* 10Hz, 20Hz, 40Hz, and 6Hz focus tones
* Play, pause, and stop controls
* 1 to 60-minute custom timer
* 5, 10, 15, and 30-minute presets
* Japanese and English language support
* Simple and easy-to-read dark design
Terms of Use (EULA):
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, TORU YAMAKAWA, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Purchases
- Usage Data
- Diagnostics
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- TORU YAMAKAWA
- Size
- 75.6 MB
- Category
- Lifestyle
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 13.0 or later. - iPad
Requires iPadOS 13.0 or later. - iPod touch
Requires iOS 13.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- Japanese
- Age Rating
4+
- 4+
- Contains
Advertising
User-Generated Content
- In-App Purchases
Yes
- Remove Ads $1.99
- Copyright
- © 2026 Toru Yamakawa