Commercial Transactions Act Disclosure
Last updated: October 8, 2026
This is a reference translation of the disclosure required under the Act on Specified Commercial Transactions of Japan. The Japanese version is authoritative.
- Seller
- 8arms LLC (合同会社8arms)
- Corporate number
- 4010403036710
- Representative
- Yoshifumi Kondo
- Address
- Mitsuhashi Building 3F, 1-3-3 Kita-Aoyama, Minato-ku, Tokyo
- Contact
- info@8arms.io
- Phone number
- Disclosed without delay upon request. Please contact the email address above.
- Price
- ¥580 per month or ¥5,800 per year, tax included. When you purchase inside the iOS app, Apple is the seller and the price the App Store shows for your country or region applies.
- Costs other than the price
- Internet connection charges are borne by the user.
- Payment method
- Credit card (payment processing: Stripe / subscription management: RevenueCat), or an App Store purchase inside the iOS app
- Payment timing
- Charged at sign-up, then on each renewal date (every month on the monthly plan, every year on the yearly plan). The same cycle applies to purchases made through the App Store. If you purchased on the web and switch from monthly to yearly, you are charged at the time of the switch — the yearly price minus the unused rest of the current month — and the plan renews every year from that day. For purchases made through the App Store, the yearly price is charged from your next renewal date.
- Delivery
- Available immediately after payment is completed.
- Term and renewal
- Renews automatically every month (monthly plan) or every year (yearly plan).
- Cancellation
- You can cancel at any time from your profile page. Cancel before the next renewal date and no further charges occur. After cancelling, paid features remain available until the end of the current period (a month on the monthly plan, a year on the yearly plan). If you purchased inside the iOS app, you can also cancel from your profile’s “Manage subscription” link or from Settings › Apple Account › Subscriptions on your iPhone.
- Returns and refunds
- Due to the nature of the service, no returns or pro-rated refunds are given after delivery. This includes cancelling a yearly plan partway through: the rest of the period is not refunded. This does not limit any rights you have under applicable law. We do handle refunds individually for a double charge, and for any period the service was effectively unusable because of a failure on our side. Refunds for purchases made inside the iOS app are handled by Apple, under Apple’s terms.
- System requirements
- Latest versions of Safari / Chrome / Edge / Firefox, or the mekuru app for iPhone and iPad (iOS 16.4 or later)