This English version is provided for convenience. The Japanese version is the official version. If there is any inconsistency between this translation and the Japanese version, the Japanese version shall prevail.
1. Operator
Lunail is operated by keita suzuki.
2. Information We May Collect
- Account information such as email address, user ID, and authentication information
- Images, nail designs, generated images, and related data uploaded, saved, or generated by users
- Information about salons that users register as favorites (such as salon name and URL)
- Purchase status, subscription status, and credit usage information
- App usage history, operation logs, and feature usage data
- Device information, OS information, app version, language settings, and crash logs
- Information provided when contacting us, such as email address and inquiry details
3. Purposes of Use
- To provide, maintain, protect, and improve the Service
- To provide nail image generation, virtual try-on, design saving, and related features
- To authenticate users and manage accounts
- To manage paid services, subscriptions, and credits
- To investigate and prevent fraud, violations, errors, and system failures
- To respond to inquiries and send important notices
- To analyze usage and improve service quality
- To provide the favorite salon registration feature and to improve features and enrich content based on it
- To analyze information about favorite salons in a statistical form that does not identify individuals. If we provide such information to third parties in the future, we will do so only after obtaining users’ consent again in advance
- To comply with legal obligations
4. Handling of Image Data
Lunail uses images selected or uploaded by users for nail design generation, virtual try-on image creation, saving, display, and related purposes. Image data may be sent to external AI or image processing services as necessary to provide these features.
Users must not upload images that infringe third-party rights or contain illegal or inappropriate content.
5. External Services
Lunail may use the following external services:
- Firebase for authentication, data storage, app operation, and logging
- RevenueCat for in-app purchases, subscription status, and purchase management
- Apple App Store for payments, subscriptions, and refund processing
- AI image generation and image processing services
- Analytics and crash reporting services for quality improvement
Information handled by these services is subject to each provider’s privacy policy and terms.
6. Disclosure to Third Parties
We do not disclose personal information to third parties except where required by law, with user consent, or where necessary to provide the Service through contractors or external service providers.
7. International Data Transfers
Servers of external services used by Lunail may be located outside Japan. By using the Service, users acknowledge that their information may be transferred, stored, or processed overseas as necessary.
8. Retention Period
We retain user information for the period necessary to achieve the purposes described in this Policy or for the period required by law. Information that is no longer needed will be deleted or anonymized by reasonable means.
9. Security Measures
We take reasonable security measures to prevent leakage, loss, damage, or unauthorized access to user information. However, we do not guarantee complete security due to the nature of internet communications and external services.
10. User Rights
Users may request disclosure, correction, deletion, or suspension of use of their personal information in accordance with applicable laws. Please contact us at the address below.
11. Minors
Minors must use the Service with the consent of a parent or legal guardian.
12. Cookies and Similar Technologies
This website or the Service may use cookies or similar technologies for convenience, usage analysis, and quality improvement.
13. Changes to This Policy
We may modify this Policy as necessary. Changes become effective when posted on this website or within the Service.
14. Contact
For inquiries regarding this Policy, please contact: utataneapp@gmail.com
Effective Date: July 12, 2026