Terms of Use

These Terms of Use ("Terms") set forth the conditions for using the app "Couple Wallet" (iOS / Android, the "App") provided by Takuya Soneda ("Developer"). By downloading, installing, registering for, or using the App, you are deemed to have agreed to these Terms.

This English version is provided for convenience only. In the event of any discrepancy between the English version and the Japanese version, the Japanese version shall prevail.

1. About the App

The App is a service for managing shared expenses, reimbursements, and settlements among multiple people such as spouses, couples, family members, and friends. Users may use expense records, settlement records, shared wallets, notifications, and other features to the extent provided by the App.

2. User Environment

Users shall prepare, at their own expense and responsibility, a smartphone, internet connection, Apple ID, Google account, and any other environment necessary to use the App. Communication charges and any other costs related to using the App shall be borne by the user.

3. Accounts and Authentication

Some features of the App require login through Firebase Authentication or similar services. Users shall manage their authentication methods at their own responsibility and shall not allow unauthorized use by third parties.

On iOS, the App supports email authentication, Google Sign-In, and Sign in with Apple. On Android, the App supports email authentication and Google Sign-In. Supported authentication methods may change in the future.

4. Use of Shared Features

When a user uses the partner linking feature, the user's registered name, expense records, settlement records, setting information, and related data may also be displayed to the linked partner. Users are responsible for selecting the correct sharing partner, confirming entered content, and checking the scope of information being shared.

Even if disadvantages arise due to poor management of linking codes, incorrect input, mistaken sharing, or other user-side operations, the Developer shall not be liable unless there is willful misconduct or gross negligence on the part of the Developer.

5. User-Entered Data

Users may input only information they are authorized to input, share, and store in the App. Users must not input unlawful information, information that infringes the rights of third parties, or false information.

6. Notifications, Advertising, and Analytics

The App includes push notifications, ad delivery, and usage analytics. Whether notifications or ads are shown, device permission settings, and the handling of identifiers shall be subject to the user's device settings and the specifications of external services.

7. Premium Features and Billing

On iOS, premium features may be provided through Apple's App Store / StoreKit. If auto- renewable subscriptions are offered, fees, billing dates, renewal periods, covered features, availability of free trials, cancellation methods, and related details shall follow what is displayed in the App Store or within the App at the time of purchase.

Auto-renewable subscriptions may renew automatically unless the user cancels them through the Apple ID subscription management screen or another method designated by Apple before the renewal date.

Cancellations, refunds, restoring purchases, and other billing-related matters are governed by Apple's terms, policies, and payment systems. Features, pricing, and other conditions may differ between the iOS and Android versions.

8. Prohibited Conduct

Users must not engage in any of the following when using the App:

Acts that violate laws or public order and morals
Acts that infringe the rights, interests, reputation, credit, or privacy of third parties
Unauthorized access, reverse engineering, imposing excessive load, or otherwise interfering with operation of the App
Registering false information
Impersonating a third party to use the App
Using the App for improper purposes, commercial purposes, or in ways not intended
Acts that violate the terms of use of external services
Any other acts deemed inappropriate by the Developer

9. Changes, Suspension, or Termination of the Service

The Developer may change, suspend, or terminate all or part of the App without prior notice to users if the Developer determines it is necessary due to maintenance, incident response, legal compliance, specification changes, or other reasons.

10. Intellectual Property Rights

All intellectual property rights related to the App, including programs, designs, text, images, trademarks, and all other content, belong to the Developer or the legitimate rights holders. The license to use the App under these Terms does not imply transfer of such rights.

11. Disclaimer

The Developer does not guarantee the accuracy, completeness, usefulness, fitness for a particular purpose, continuity, or availability of any records, calculation results, displayed content, or any other information provided through the App. The App is provided on an "as is" basis.

The Developer shall not be liable for disputes between users, data loss, device failure, communication failures, failures of external services, delayed or undelivered notifications, advertising content, billing processes, or any other damages related to use of the App, unless there is willful misconduct or gross negligence on the part of the Developer.

12. Withdrawal and Data Deletion

Users may stop using the App, delete their account, or delete their data by the method separately designated by the Developer. However, deletion may take time or may not occur immediately for shared data, information that must be retained under applicable law, information that cannot be deleted immediately due to system constraints, information retained by external service providers, or other information that is not reasonably possible to delete immediately.

13. Measures Against Violations

If the Developer determines that a user has violated these Terms, the Developer may take necessary measures such as warnings, suspension of use, or deletion of data.

14. Changes to These Terms

The Developer may revise these Terms as necessary. Revised Terms shall become effective when announced on this page or within the App, or from another separately designated effective date.

Last updated: March 17, 2026

15. Governing Law and Jurisdiction

These Terms shall be governed by the laws of Japan. If a dispute arises between the Developer and a user in relation to the App, the court having jurisdiction over the Developer's location shall be the court of first instance with exclusive agreed jurisdiction.

16. Contact

For inquiries regarding these Terms, please contact: tbagse@gmail.com