Privacy Policy

Aug 3, 2023

Enacted: August 3, 2023 / Revised: October 28, 2026

Introduction

"Sanokuni" is a product provided by 100plus Inc. (hereinafter referred to as "100plus" or "we/us/our") that records and displays heart rate, body surface temperature, and step count during sauna activities via wearable devices, and provides guidance for sauna activities. Wearable devices include those owned by users themselves, as well as those loaned to users through our affiliated bath facilities and other partners (hereinafter referred to as "Rental Watches").

We are committed to protecting your privacy. This Privacy Policy sets forth the principles applicable to the operation of "Sanokuni".

This Privacy Policy was created with your needs in mind, and it is important that you comprehensively understand how we collect and use personal information, and ultimately maintain control over the personal information you provide to us. This Privacy Policy explains how we collect, use, disclose, process, and store information provided to us when you use the "Sanokuni" app (hereinafter referred to as "the App"). In this Privacy Policy, "personal information" means information that can directly or indirectly identify an individual, either from that information alone or in combination with other information about that individual accessible to us. We will strictly use your personal information in accordance with this Privacy Policy.

If you have any questions regarding our data handling practices described in this Privacy Policy, please contact us (contact@100plus.co.jp). We will respond to your specific questions and look forward to hearing from you.

1. Types of Information Collected and Purposes of Use

1.1 Personal Information Collected and Used with Your Permission

When we collect and use information that you actively provide while using our products and services, as well as personal information generated from the use of our products and services, we adhere to the principles of legitimacy, lawfulness, transparency, and necessity, and use such information for the purposes stated in this Privacy Policy. If it becomes necessary to use personal information for purposes not specified in this Privacy Policy, or to use personal information previously collected for a specific purpose for other purposes, we will notify you in a reasonable manner and obtain your consent anew before doing so.

Before providing sensitive personal data to us, you shall carefully consider, hereby confirm that its provision is appropriate, and agree that the sensitive personal data will be processed in accordance with the purposes and methods described in this Policy.

1.1.1 Recording and Displaying Activity and Fitness Information

When you use our wearable devices (including Rental Watches; hereinafter referred to as "Devices"), we may collect and record information regarding sauna activities such as step count, body movement, sleep, sauna activities and duration, heart rate, and body surface temperature. Furthermore, we may collect personal information such as nickname, gender, date of birth, height, and weight, as well as location information. This information is used to quantify sauna activities and calculate and display appropriate advice on both wearable devices and the app, enabling you to better understand your sauna activities. Your personal information is also used to generate personalized advice for sauna activities. It will be displayed in the app and can be checked at any time. If personal information (such as gender, height, age, and weight) is not provided, default values will be used to generate suggestions.

1.1.2 Feedback

If an issue occurs while using "Sanokuni", please provide your feedback and contact information (phone number or email address). This information will be used to better understand the issue you encountered and to contact you. If logs are uploaded to resolve an issue, we will collect information from the uploaded logs. The uploaded logs include data during sauna activities (such as heart rate and duration). The information will be used solely for troubleshooting and will not be used for any other purpose.

1.1.3 Notifications

When the notification function is turned on, smartphone notifications will be synchronized to the wearable device. We do not read or store notifications, and related information is used solely to display notifications on the wearable device. Notification settings can be managed within the app.

1.1.4 Wearable Device Settings

You can change wearable device settings via the app to adjust the wearable device's display, brightness, and other functions.

1.1.5 Information Acquired in Connection with the Use of Rental Watches

When a user uses a rental sauna device, in addition to the information described in 1.1.1, the Company collects and records information including their email address, the Facility where the rental was provided, the date and time of rental and return, identification information of the rental sauna device, and information regarding the rental application and fee payment.

This information records when and which Facility the user used. The Company uses this information to provide rental services, calculate and bill fees, manage rental sauna devices, handle delayed returns, damages, and losses, and prevent unauthorized use.

The handling of heart rate, surface temperature, and other information related to sauna activities measured by the rental sauna device is as described in 1.1.1. Upon return or at other times designated by the Company, this information is recorded on servers managed by the Company via the Company's terminals installed at the rental Facility, and is subsequently reflected in the user's App.

The Company uses information acquired via rental sauna devices for the purposes of providing the Service, improving the functionality and quality of the Service, generating statistical information, and conducting research and development. If the Company provides this information to third parties, it shall do so after processing it so that individuals cannot be identified, or upon obtaining the user's consent as required by laws and regulations.

Payment of rental fees is processed by a payment agency commissioned by the Company, and the Company does not retain credit card numbers or other information necessary for payment. Information retained by the payment agency for legal obligations or its own purposes is handled in accordance with the privacy policy of said payment agency.

Both the information acquired by the rental sauna device and information regarding the use of rentals are recorded only on servers managed by the Company. Partner Facilities accept rentals on the Company's system via terminals loaned by the Company, and none of this information is stored on the partner Facility side.

1.1.6 Information Acquired in Connection with Purchases of Coins and Premium Plans

When a user purchases coins within the App, the Company collects the date and time of purchase, quantity, and transaction identification information, and uses them to manage coin balances, display purchase history, and prevent unauthorized use.

When a user subscribes to the Premium Plan or other paid services, the Company collects the subscribed plan, date and time of purchase and renewal, expiration date, auto-renewal status, the store used, and transaction identification information, and uses them to provide paid services, manage subscription status, display purchase history, and prevent unauthorized use.

Payments for coins and paid services are processed by the App Store or Google Play, and the Company does not acquire credit card numbers or other information necessary for payment.

1.1.7 Use of Email Addresses

The Company uses the email address provided by users when registering for the App, applying for a rental, or making an Inquiry, for purposes such as sending verification codes for identity verification, rental confirmation numbers, notices of return completion, return requests, fee billing, and other communications regarding rental services, notices of changes to the Service, revisions to terms, and other important Notices, as well as responding to Inquiries.

In addition, only when a user consents to receiving them, the Company will use their email address to provide information regarding the Company's products, services, campaigns, events, etc. (including sending emails for promotional purposes). Users may unsubscribe from informational emails at any time via the method described in each email or other methods designated by the Company. Even if unsubscribed, the Company will still send communications regarding rental services and other important Notices.

1.1.8 Information Acquired in Connection with Participation in Competitions, etc.

When a user participates in competitions, contests, campaigns, etc. (hereinafter referred to as "Competitions, etc.") hosted by the Company or its business partners, the Company collects information such as name, address, telephone number, email address, and other information necessary for the operation of the Competitions, etc. and the shipment of prizes.

The Company uses this information for operating Competitions, etc., contacting participants and winners, shipping prizes, and responding to Inquiries and disputes regarding Competitions, etc. The information published when announcing winners is as described in 2.3.

1.1.9 Use for Dispute Resolution and Other Matters

In addition to the purposes described in 1.1.1 through 1.1.8, the Company uses acquired information to confirm the history of responses to Inquiries, resolve disputes with users and protect the Company's rights, prove that information was handled with user consent, fulfill legal obligations, and prove the fact of account deletion and prevent confusion of User Handles.

1.1.10 Storage on Common Infrastructure and Account Linking

We store measurement data such as heart rate, sleep, and other metrics acquired by the device on an infrastructure common to multiple services provided by us (hereinafter referred to as the "Common Infrastructure"). We may analyze the measurement data stored on the Common Infrastructure across services for the purpose of improving and developing our products and services, including this application and other services provided by us, creating statistical information, and conducting research and development.

If a user links their account between this application and other services provided by us (hereinafter referred to as "Linked Services"), we will, based on the user's consent, also use measurement data acquired by this application (including data stored prior to account linking) for functions provided to the user by the Linked Services. Information held exclusively by this application, such as Totonoi Logs and coins, will not be used in Linked Services. Account linking can be unlinked at any time. Following unlinking or account deletion, measurement data acquired by this application, including data stored prior to unlinking, will not be used in the Linked Services. However, analysis results created by the Linked Services based on such measurement data prior to unlinking may be retained and used within the Linked Services.

1.2 Provision of Personal Information to Third Parties

We will not provide acquired personal information to third parties without the consent of the individual, except in the following cases:

When the user has given consent
When disclosing or providing data as statistical data in a state where the user cannot be identified
When required by laws and regulations
When it is necessary for the protection of human life, body, or property, and it is difficult to obtain the consent of the individual
When it is especially necessary for improving public health or promoting the sound development of children, and it is difficult to obtain the consent of the individual
When it is necessary to cooperate with a state organ, a local government, or an individual or entity entrusted by either in executing affairs prescribed by laws and regulations, and obtaining the consent of the individual is likely to impede the execution of such affairs
When entrusting the handling of personal information within the scope necessary to achieve the purpose of use
When personal information is provided in connection with the succession of business due to a merger or other reasons

1.3 Collection of Personal Information from Third Parties

Where permitted by law, we collect information about users from third-party sources. For example, if you authorize signing in with a third-party account to use our services, or authorize importing your information from a third-party platform, we collect information such as your account number, nickname, etc.

1.4 Non-Personally Identifiable Information

We may also collect information that cannot identify a specific individual (information that is explicitly not personal information), such as user usage frequency, usage time, page views, and the number of clicks on various functions. The purpose of such collection is to improve the services provided to users. The type and amount of information collected depends on how users use our products and/or services.

This information is aggregated and used to provide more useful information to users and to understand which parts of our products and services users are most interested in. Since aggregated data is not personal information, it cannot be used to identify users. However, if non-personally identifiable information is combined with personal information, as long as it remains combined, such information will be treated as personal information.

2. Joint Use, Provision via Entrustment, and Provision to Third Parties of Personal Information

2.1 Joint Use

We do not sell personal information to third parties. We may jointly use users' personal information with third parties (see below for definitions) in order to provide or improve our products and services, including providing products or services based on user requests. If you do not wish for this information to be jointly used, please make an Inquiry here (contact@100plus.co.jp).

2.1.1 Joint Use Actively Selected or Requested by Users

Based on the user's explicit consent or request, we will jointly use personal information with specific third parties designated by the user within the scope of the user's consent/request.

2.1.2 Joint Use of Personal Information with Third-Party Service Providers

Our privacy policy does not apply to products or services provided by third parties. Depending on the product or service used, what is provided by the "Sanokuni" app may include third-party products or services, such as those related to settings for smart wearable devices. Furthermore, when such products or services are used, information may also be collected by third parties. For the reasons above, we strongly recommend reading the privacy policies of third parties just as you would read our privacy policy. We have no responsibility for, nor can we control, how third parties use personal information collected from users. Our privacy policy does not apply to other sites linked from our services.

2.2 Provision Associated with Outsourcing

100plus will not provide user information to any party in connection with outsourcing, except in the following cases:

When the explicit consent of the user has been obtained.
If 100plus is involved in a merger, acquisition, or sale of all or part of its assets that may affect personal information, we will notify users through appropriate methods, such as by sending an email and/or posting a prominent notice on our website, regarding changes in ownership and usage, as well as users' choices regarding their personal information.
When entrusting the handling of personal information to payment processing agencies or other contractors to the extent necessary to provide the rental service. In this case, we will exercise necessary and appropriate supervision over the contractors.
In circumstances described in this Privacy Policy or in circumstances notified to users by other means.

Furthermore, rental acceptance at affiliated facilities is conducted on a system managed by us through terminals loaned by us to the affiliated facilities. Personal information is not provided to affiliated facilities, nor is personal information stored at affiliated facilities. The information that employees of affiliated facilities can check is limited to the extent necessary for accepting the lending and return of rental watches.

2.3 Provision to Third Parties

100plus may provide personal information to third parties under the following circumstances:

When it is necessary to announce winners of promotions, contests, or sweepstakes. In this case, only limited information will be publicized.
When the user's explicit consent has been obtained, or when the user has disclosed information through our services, such as social media pages or public forums.
When disclosing or providing information as statistical data in a state where users cannot be identified.
Provision to third parties based on laws, regulations, legal proceedings, litigation, requests from relevant government authorities, or other legal or reasonable grounds.

3. Storage and Protection of Personal Information

3.1 Security Measures

We are committed to keeping users' personal information secure. To prevent unauthorized access, disclosure, or other similar risks, we have implemented all legally required physical, electronic, and managerial procedures to safeguard information collected from mobile devices. We ensure that users' personal information will be protected in accordance with applicable laws.

All personal information is stored on secure servers and protected in controlled facilities.

We conduct due diligence to confirm that our business partners and third-party service providers are capable of protecting users' personal information. In addition, we ensure that these third parties maintain appropriate security standards by establishing appropriate contractual restrictions and conducting audits and assessments as necessary. Furthermore, our employees, as well as the employees of our business partners and third-party service providers who have access to users' personal information, are subject to enforceable contractual confidentiality obligations.

We conduct training and testing on security and personal data protection to raise our employees' awareness of the importance of personal data protection. We take all feasible and legally required measures to protect your personal data. However, please note that use of the internet is not completely secure, and therefore we cannot guarantee the security or integrity of any personal data transferred from or to you over the internet.

We handle personal data breaches in accordance with the requirements of applicable data protection laws, including notifying relevant data protection supervisory authorities and data subjects of breaches where required.

3.2 What You Can Do

By setting a unique password for 100plus services and not disclosing your password or account information to anyone (except those officially authorized), you can avoid password leaks from other websites that may compromise the security of your account on 100plus.

When using products or services other than "Sanokuni," or browsing or using other products or services provided by third parties, any personal data you provide to such third parties will be governed by the third party's privacy statement or related policies. If you use products or services other than "Sanokuni," we have neither the ability nor any direct obligation to protect the personal data you have provided to third parties. Please protect your personal data appropriately and carefully read the privacy statements and related policies provided by third parties.

100plus cannot be held responsible for security lapses resulting from the disclosure of personal data due to your own negligence, which allows third parties to access such personal data. Notwithstanding the above, you must notify us immediately if unauthorized use of your account or any other security breach by another internet user occurs.

With your cooperation, we are able to protect your personal data.

3.3 Retention Policy

We retain your personal data only for as long as necessary to fulfill the purposes of use described in this Privacy Policy. However, if necessary to fulfill legal obligations, respond to Inquiries, handle disputes, investigate unauthorized use or take other information security measures, or prove that consent was obtained or an account was deleted, we may retain personal data in an identifiable form even after account deletion, strictly to the extent and for the period necessary to achieve such purposes. In this case, we will not use the personal data for any other purpose, and access will be restricted to necessary personnel.

Personal data for which the retention period has ended will be deleted or processed so that specific individuals cannot be identified. We may retain information that has been processed so as not to identify specific individuals for the purpose of creating statistical information and for research and development.

To prevent confusion caused by another person claiming the same User Handle, we will retain the character string of the used User Handle even after account deletion, without linking it to the account or other information.

Measurement data stored on the rental device itself will be erased after return in preparation for use by the next user. We do not guarantee the preservation or restoration of data stored on the rental device.

4. Your Rights

4.1 Control Settings

We recognize that privacy concerns vary from person to person. Therefore, here are examples of methods that "Sanokuni" provides to you to restrict the collection, use, disclosure, or processing of personal data and to control your privacy settings.

You can pair and unpair your wearable device from [Home] > [Connect with sauna device].
When using your own device, device data will be synchronized from [Home] > [Sync Device Data]. Data will not be synchronized by any other method.
You can turn notification access permissions on or off from [Home] > [Connect with sauna device] > [Heart Rate Notification Settings].
When using a rental device, no operation is required to link the wearable device with this app. Measurement data will be transmitted to us via a terminal at the lending Facility upon return or at other times designated by us, and will subsequently be reflected in your app.

4.2 Your Rights Regarding Personal Data

Under applicable laws and regulations, you have the right to access, rectify, and erase your personal information held by us (hereinafter referred to as a "Request").

Please make an Inquiry here (contact@100plus.co.jp).

Requests must satisfy the requirements of applicable laws and the following conditions:

Requests must be submitted through the dedicated request channel of 100plus detailed above and must be made in writing to protect the security of your information (unless local laws explicitly allow oral requests).
You shall provide sufficient information for 100plus to verify your identity and confirm that you are the data subject or have the legal authority to act on behalf of the data subject.

After obtaining sufficient information to confirm that your Request can be processed, we will proceed with responding to the Request within the timeframe stipulated under applicable data protection laws. Details are as follows:

Based on the requirements of applicable laws, a copy of the personal data collected and processed by us will be provided free of charge upon your Request. If you request additional related information, we may charge a reasonable fee based on actual administrative costs, where permitted by applicable law.
If the information held by us is inaccurate or incomplete, you have the right to rectify or supplement your personal information based on the purpose of use.
Based on the requirements of applicable laws, you may have the right to request the deletion or removal of your personal information. We will examine the grounds for your deletion request and take reasonable measures, including technical means. Please note that due to applicable legal and/or technical limitations, information cannot be immediately deleted from backup systems, but it will be deleted within 30 days from the date of receipt of the deletion request or account deletion application. In this case, we will store the personal information securely and isolate it from further processing until the backup can be deleted or anonymized.

We reserve the right to refuse to process requests that are meaningless, manifestly unfounded, excessive, infringing upon the privacy rights of others, extremely unrealistic, requiring disproportionate technical effort, not required by local law, or concerning information that has been made public or provided under confidential conditions. If we believe that certain aspects of a request for information deletion or access may prevent us from lawfully using the information for the aforementioned fraud prevention and security purposes, the request may be refused.

4.3 Cancellation of Services or Account

You can apply for account deletion from [My Page] > [Delete Account]. You can cancel your application for 14 days from the date of application. After 14 days have passed, we will delete the data in "Sanokuni", except for personal information retained as described in 3.3. Data remaining in backups and other locations from which we can restore data will also be deleted within 30 days from the date of application. Please proceed with caution, as deleting your account will prevent you from using the full range of products and services, and any coins you hold as well as permissions to view restricted content will be forfeited.

If you have not completed returning the rental watch, or if you have outstanding fees owed to us, you cannot delete your account.

5. Updates to This Privacy Policy

We review our Privacy Policy periodically based on changes in our business and services, and may update this Privacy Policy to reflect these changes. If we make material changes to the Privacy Policy, we will notify you via an in-app dialog to ensure you are aware of the information we collect and how we use it. Such changes to the Privacy Policy will apply from the date they are updated. We recommend that you regularly check the Privacy Policy within the app for the latest information on our personal information protection. If we collect additional personal information from you, or if we use or disclose your personal information for new purposes, we will seek your explicit consent.

6. Inquiry

An Inquiry function is provided as a means to contact the administration when you have questions or requests regarding this app.

Since the Inquiry function communicates via email, any reply will be sent to your email address. Other purposes of use for email addresses are as described in 1.1.7.

You may also contact us directly by email.

100plus Inc.
Email: contact@100plus.co.jp