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Legal · Commercial Transactions

Notation based on the Act on Specified Commercial Transactions

Last updated 2026-06-05 Operated by SpiralInf

The following is disclosed pursuant to Article 11 of the Act on Specified Commercial Transactions of Japan. This is an English translation provided for convenience; the Japanese version is authoritative and prevails in case of any discrepancy.

Seller SpiralInf
Operations manager Disclosed without delay upon request.
Address Disclosed without delay upon request.
Phone number Disclosed without delay upon request.
Email address spiralinf@gmail.com
Price Premium plan: ¥280 per month (tax included) The latest price follows the amount (tax included) shown on the in-app plan purchase screen.
Costs other than the product price Internet connection charges and other costs of telecommunication line use (borne by the customer).
Payment method Subscriptions from the iOS app (App Store) are made via Apple's In-App Purchase (the payment method registered to your Apple Account). Subscriptions from the web are made via credit card payment (Visa, Mastercard, American Express, JCB, etc.). RevenueCat, Inc. is used as the billing platform. Stripe, Inc. is used to process credit card payments on the web.
Timing of payment Charged automatically at the time you subscribe to the Premium plan and at each monthly renewal thereafter.
Timing of service provision Available immediately after payment is completed.
Cancellation, returns & refunds Because this is digital content by nature, we cannot accept returns or refunds after purchase. You can cancel from the iPhone "Settings" → Apple Account → "Subscriptions" if you subscribed via the iOS app, or from the payment management screen inside the app if you subscribed via the web. By cancelling before the next billing date, you can stop subsequent charges. Even after cancelling, you can use the service until the end of the period you have already paid for. Except where a refund is required by law, we do not refund fees already paid. For details, please review the Terms of Service.