Legal Notice
This page provides information required under Japan’s Act on Specified Commercial Transactions for paid features or related services offered through SpringStart.
Last updated: July 12, 2026| Seller | HARMONICOM |
|---|---|
| Responsible person | Kazuyasu Yamamoto |
| Address | New Central Building 9F, 1-5-12 Nishi-Shinjuku, Shinjuku-ku, Tokyo 160-0023, Japan |
| Phone number | 090-9752-5736 |
| Email address | info@harmonicom.jp |
| Contact form | https://support.harmonicom.jp/ |
| Sales price | Shown on each service or product page |
| Development support amount | The amount is the support amount menu shown for each development support campaign or an optional amount entered by the supporter. It can be reviewed on each campaign page before application. There is no target amount, and only the total support amount is displayed. |
| Additional fees | Internet connection fees, communication fees, bank transfer fees, and other costs based on the user environment are borne by the user. |
| Development support fees | Stripe payment fees and the 5% SpringStart service fee (tax included) are deducted from the support amount, and the remaining amount is paid to the developer. |
| Payment method | Shown on the applicable payment or application screen |
| Payment timing | Payment is processed when the support or application procedure is completed. For credit card payments, the actual withdrawal date depends on the card issuer. |
| Service delivery | Available after payment completion or completion of the procedure specified by us |
| Returns and cancellations | Due to the nature of digital services, returns and cancellations are not accepted after service delivery begins, except where required by law. |
| Development support refunds | Development support is reward-free support money and is not refunded except for illegality, prohibited projects, fraud, Stripe or card network requests, or cases legally required. |
Development support
Development support is not a tax-deductible charitable donation. It is voluntary support money for product developers. Supporters do not request rewards, deliverables, equity, dividends, revenue share, or any other consideration.
Changes to this notice
The information on this page may be updated as service content, laws, or payment methods change.