Last updated: August 11, 2026
YokkoLab
Satoshi Yokokawa
Park Front Shinjuku 202, 2-8-15 Shinjuku, Shinjuku-ku, Tokyo 160-0022, Japan
support@yokkolab.com
A telephone number will be disclosed without delay upon request.
The tax-inclusive price is displayed on each in-app purchase screen.
Internet connection and communication fees are borne by the customer.
Payment is charged at purchase using the method specified by App Store or Google Play. Subscriptions renew automatically for each billing period.
The digital service is available immediately after payment is completed.
Due to the nature of digital products, returns and refunds are generally not accepted after purchase. Subscriptions can be canceled from the App Store or Google Play subscription management page. Refund eligibility follows each platform's policy.