News
2025/1/17
Release of the "Zen Bell Timer" App
Koizumi Seisakusho Co., Ltd. is pleased to announce the release of the “Zen Bell Timer” app, a timer application featuring the soothing sounds of our popular bell "Tamayurarin".

What is Zen Bell Timer?
Zen Bell Timer” is a timer application that can be used for meditation, yoga, relaxation, and sleep onset.
The application uses the “Tamayurarin”, a much-loved item in Japan, and features a dignified and pleasant sound.
The actual “Tamayurarin” is characterized by its round shape and swaying motion, and you can enjoy the swaying motion in the application as well.
The simple interface makes it easy to use.
▼Download▼
App Store → Zen Bell Timer
Google Play → Zen Bell Timer
Background of Development?
Our product, the Tamayurarin®, is highly appreciated for its soothing sound and elegant swaying motion.
In 2021, we opened our first flagship store in Kanazawa’s Higashi Chaya District, where we receiving direct positive feedback from customers.
Many have shared that the sound of our product has helped them relax and unwind day of life. Inspired by this positive feedback, we developed the "Zen Bell Timer" app to help even more people relax and meditate in today’s fast-paced society.
About Zen Bell Timer
〇Characteristic
・This is a timer application using “Tamayurarin”, a bell with a characteristic round shape.
・Simple design and easy-to-understand user interface.
・No registration required—use it for free.
・Premium features available with a subscription, starting at $1/month.
〇Function
・You can set the timer time by moving your finger on the bell.
・Tap the bell to start the countdown with a comfortable sound and swaying motion.
・You can be set in seconds or minutes, with a maximum setting time of 60 minutes.
・You can set the bell volume from 10 levels
・You can choose from several backgrounds
〇Paid Version Benefit Features
・Repeat function
・Interval function
・end-call function
・Bell sound ON/OFF function
・Vibration function
・Background music to play function
monthly fee:$1
〇About Subscriptions
How to subscribe
1. Tap “Choose Plan” on the Settings screen
2. Select update interval
3. Subscribe to Subscription
・This is an auto-renewing monthly fee (subscription-type) service.
・Unless you cancel your subscription, you will automatically be charged each month.
・Registration, management, and cancellation can be done through your App Store account settings.
〇About Tamayurarin
Tamayurarin is a bell characterized by its round shape and swaying motion when it is rung.
By supporting the bell with a single post, the sound resonates for a longer period of time, unlike conventional bowl-shaped or ons.
Tamayurarin, which has been patronized by many people since its launch in 2004, was born from the requests for a compact bell that produces good sound.
Tamayurarin" was born from an unconventional idea that makes an bell upside down.
After repeated challenges with the cooperation of local companies, a new bell with a swaying motion was completed.
In 2005, we received the Good Design Award from Japan.
Tamayurarin is used not only as a Buddhist altar, but also for meditation, yoga, relaxation.