Privacy Policy

Last updated: February 22, 2026

事業者情報

事業者名	株式会社ネクサステック
法人番号	8180001166609
所在地	〒450-0002 愛知県名古屋市中村区名駅四丁目24番5号第2森ビル401
代表者	代表取締役于立石

1. Information We Collect

1.1 Information You Provide

Name, email address
Account authentication credentials
Inquiry details
Payment information (securely managed by our payment processor)

1.2 Information Collected Automatically

Device and browser information, IP address
Access timestamps and browsing history
Chatbot usage data

2. How We Use Your Information

Providing and maintaining the Service
User support and inquiry response
Analyzing usage data to improve service quality
Improving AI chatbot response quality
Sending important notices and update information

3. Data Security

We implement appropriate measures to protect your personal information, including full encryption of communications via SSL/TLS, secure authentication through Firebase Authentication, and strict access controls. We also maintain data isolation through multi-tenant architecture on Firestore databases hosted on Google Cloud Platform, preventing your data from being accessed by other users.

4. Third-Party Services

4.1 Firebase (Google)

Used to provide authentication, database, and hosting functionality.

4.2 Google Cloud / Gemini AI

Used to generate AI chatbot responses. Your chat data is not used for AI model training.

4.3 Stripe

Used for payment processing. Credit card information is not stored on our servers and is securely managed by Stripe.

5. Use of Cookies

The Service uses cookies for the following purposes:

Essential cookies — Maintaining login state, session management
Analytics cookies — Analyzing usage to improve the Service

6. Contact Us

For inquiries regarding this Privacy Policy, please contact us at the address below.

Email: support@nexus-tech.jp