This is the disclosure required by Japan's Act on Specified Commercial Transactions (特定商取引法) regarding the in-app purchase (one-time purchase). The app itself is free to use. The app concerned is "Koisuru Nihongo Cefrly Lab" (applicationId: com.cefrlylab.ja).
The Japanese version is the official text; this English translation is provided for convenience. If there is any discrepancy between the two, the Japanese version (特定商取引法に基づく表記) prevails.
| Seller | Koji Kimura (operating as a sole proprietor) |
|---|---|
| Person responsible for operations | Koji Kimura |
| Address | Disclosed without delay upon request (please request by email at the address below) |
| Phone number | Disclosed without delay upon request (inquiries are accepted by email) |
| Contact | cefrlylab@gmail.com (inquiries are accepted by email as a rule) |
| Sales price | Premium unlock (one-time purchase): the price shown on each product's purchase screen (tax included). Prices follow those displayed on the App Store / Google Play. For those who wish to support development, higher supporter prices (¥5,000 / ¥10,000) are also available. Every option unlocks exactly the same features, and each is a single one-time purchase. The prices displayed in each store take precedence. |
| Charges other than the product price | Data/communication charges for downloading and using the app are borne by the customer. |
| Payment method and timing | Payment methods provided by the App Store / Google Play. Payment timing follows each store's rules. |
| Delivery of the product | The corresponding features and materials are unlocked immediately after payment is completed. |
| Returns and cancellation | Due to the nature of digital content, returns and refunds for customer convenience after purchase are not accepted. Refunds for payment problems and the like follow each store's rules. If you experience a defect, please contact the email address above. |
| Operating environment | See each store's listing for supported OS versions. The app works on-device as a rule (except when a network voice is selected; see the Privacy Policy). |
Last updated: 2026-07-23