Specified Commercial Transactions Act Disclosure

Last Updated: March 30, 2026

This page is provided in accordance with the Specified Commercial Transactions Act of Japan (特定商取引法).

Seller information under the Specified Commercial Transactions Act
Business Name System Design Office OBA
Responsible Person Katsuya Oba
Address Disclosed upon request without delay
Phone Number Disclosed upon request without delay
Email apps@obaonline.net
Sales URL https://obaonline.net
Selling Price As displayed on each app's App Store page and within the app
Additional Fees None
*Internet connection fees are borne by the customer
Payment Method Payment method registered with Apple ID (via App Store)
Payment Timing Charged immediately upon purchase
*Subscriptions are automatically charged on each renewal date
Delivery Timing Available immediately after purchase
Returns & Refunds We do not accept direct returns or refunds due to the nature of digital content.
*You may request a refund from Apple based on Apple's refund policy
Cancellation You can cancel your subscription at any time from iPhone Settings → Apple ID → Subscriptions. Please complete cancellation at least 24 hours before the renewal date.
*Cancellation by contacting us directly is not possible. Cancellation is only available through Apple's system
System Requirements Please refer to each app's App Store page for supported OS and devices.
*Operation on all devices is not guaranteed

Applicable Apps

Contact

If you have any questions, please feel free to contact us at the email address below.

Business Name: System Design Office OBA

Email: apps@obaonline.net