Privacy Policy

App Name: eKAKEI
Last Updated: June 15, 2026

1. Introduction

(Please set the operator name) (hereinafter referred to as the "Operator") respects the privacy of users of the household budgeting application "eKAKEI" (hereinafter referred to as the "App") and is committed to appropriately protecting personal information and related data. This Privacy Policy (hereinafter referred to as the "Policy") explains what information we collect and how we use it.

2. Information We Collect and How It Is Collected

In providing the App, the Operator may collect the following information.

(1) Information Provided Directly by Users

• Account Information: Email address, display name, profile image, and Firebase-generated internal identifier obtained through external authentication services such as Google Sign-In.
• Financial Data: Income and expense records (amounts, dates, categories, notes), budget settings, and information related to assets and payment methods.
• Household and Profile Information: Optional profile information entered by users, including household composition, employment type, housing type, and vehicle ownership.
• Location Information: Prefecture- and municipality-level residence information for region-specific features and statistical optimization.

(2) Information Automatically Collected Through Use of the App

• Receipt Images and Analysis Data: Receipt images uploaded or captured by users and text data extracted through OCR analysis.
• Device Information: Operating system version, device model, language and region settings, and application version.
• Usage Logs: Major actions performed within the App, including feature usage frequency and error information.

(3) Device Features Accessed by the App

• Camera and Photo Library: For capturing receipts and selecting existing images.
• Biometric Authentication (Touch ID, Face ID, etc.):For the App Lock feature. Biometric data is processed exclusively on the user's device and is never transmitted to the Operator's servers.

3. Purposes of Use

Collected information is used for the following purposes:

1. Providing and Maintaining the Service: User authentication, data synchronization, and proper operation of household budgeting features.
2. Improving Convenience Through AI: Automatic receipt analysis, expense category inference, and budget generation using Google AI (Gemini) and related technologies.
3. User Notifications: Periodic reminders and important system notifications when enabled by the user.
4. Service Improvement and Development: Analysis of usage patterns for feature development and UI/UX improvements.
5. Customer Support: Responding to inquiries and investigating issues.

4. Use of External Services and Disclosure to Third Parties

(1) Use of External Services

The App uses the following third-party services to provide its functionality:

• Google Firebase (Google Cloud): Used for authentication (Auth), database services (Firestore), storage (Storage), cloud functions (Functions), and notification infrastructure.
• Google AI (Gemini API):Used for receipt OCR analysis and AI-powered features. Portions of receipt images and text may be transmitted for processing and handled in accordance with the service provider's policies.

(2) Disclosure to Third Parties

The Operator will not provide personal information to third parties except in the following cases:

• When the user has provided consent.
• When disclosure is required by law.
• When necessary to protect the life, body, or property of a person and obtaining the user's consent is difficult.

5. Data Retention and Deletion

• User data is retained for as long as the account remains active or as long as necessary to provide the service.
• Users may request deletion of their household budgeting data or account at any time through features provided within the App. Upon receiving such a request, data will be deleted or anonymized within a reasonable period.

6. Security

The Operator implements appropriate security measures, including strict access control through Firebase Security Rules, encrypted communication (SSL/TLS), and secure administrator authentication procedures.

7. Contact Information

For inquiries regarding this Policy, please contact:

• Operator: (Please set the operator name)
• Contact Email Address: (Please set the contact email address)

This Policy may be revised as necessary. If significant changes are made, users will be notified through the App or the official website.