We establish this Privacy Policy (the “Policy”) as follows regarding the handling of user information, including personal information about users, in the service we provide (the “Service”).

1. User information we collect and how we collect it

In this Policy, “user information” means information relating to the identification of a user, records of behavior on the communication service, and other information generated or accumulated in relation to a user or a user's device, which is collected under this Policy. The user information collected in the Service is as follows, according to how it is collected.

(1) Information you provide to us. The information you enter or send in order to use the Service, or through your use of the Service, is as follows.

(2) Information provided by another service when you permit the Service to link with it

If you permit the Service to link with an external service in order to sign in (Google Sign-In or Sign in with Apple), we collect the following information from that external service, based on what you consented to when granting permission.

(3) Information we collect when you use the Service

We may automatically collect information about how the Service is accessed and used, through the information collection modules described in Section 4 that are embedded in the app and through server logs. This includes the following.

(4) Information we collect based on your individual consent when you use the Service

If you individually consent by the method set out in 3-1, we collect the following information from the device you are using.

2. Purpose of use

The specific purposes for which we use user information in providing the Service are as follows.

  1. (1) To provide, maintain, protect, and improve the Service, including accepting registrations, verifying identity, authenticating users, recording user settings, and calculating payment of fees
  2. (2) To measure user traffic and behavior
  3. (3) To deliver and display advertising and to measure its effectiveness
  4. (3-2) To record, aggregate, and chart each child's assets and otherwise provide the core features of the Service
  5. (3-3) To provide the family sharing feature using invitation codes, and to display that family's data to the users you invite
  6. (3-4) To provide paid plans (auto-renewing subscriptions) and manage billing status
  7. (3-5) To investigate the causes of faults in the Service, restore it, and improve its quality
  8. (4) To provide information about the Service and respond to inquiries
  9. (5) To respond to conduct that breaches the terms, policies, and the like relating to the Service (the “Rules”)
  10. (6) To notify you of changes to the Rules relating to the Service

3. Methods of notice, publication, and obtaining consent, and how to request that use be stopped

3-1 For the following user information, we obtain your consent before collecting it.

IDFA

3-2 By configuring the settings provided in the Service, you may request that the collection or use of all or part of your user information be stopped, in which case we will promptly stop such use in accordance with our rules. Note that for some items of user information, collection or use is a prerequisite for the Service; in those cases we stop collection or use only when you withdraw from the Service by the method we specify.

4. Information collection modules and external transmission

The following information collection modules are embedded in the Service. Accordingly, we provide user information to the providers of these modules (including providers located outside Japan) as follows.

Firebase Analytics

Firebase Crashlytics

Google AdMob (Google Mobile Ads SDK)

RevenueCat

Google Sign-In

Sign in with Apple

5. Provision to third parties

We do not provide personal information contained in user information to third parties (including those located outside Japan) without obtaining your prior consent. This does not apply, however, where provision to a third party (including those located outside Japan) is necessary in any of the following cases.

  1. (1) Where we entrust all or part of the handling of personal information to the extent necessary to achieve the purpose of use
  2. (2) Where personal information is provided as part of a business succession due to a merger or other reason
  3. (3) Where personal information is provided to an information collection module provider in accordance with Section 4
  4. (4) Where it is necessary to cooperate with a national agency, a local government, or a party entrusted by either of them in carrying out duties prescribed by law, and obtaining your consent risks impeding the performance of those duties
  5. (5) Any other case permitted under the Act on the Protection of Personal Information of Japan (the “APPI”) or other laws

Where we entrust the handling of personal information under (1) above, or provide user information to an information collection module provider under (3) above, we first confirm, from that party's privacy policy and terms, that it provides the same or an equal level of protection for user information as this Policy, and we exercise necessary and appropriate supervision over that party. Where the recipient is located outside Japan, we take the measures required under the APPI. The main recipients and their privacy policies are as follows.

If you invite another user to your family using the sharing feature of the Service, that person will be able to view the information about the children in that family and the transaction records. That is sharing carried out by your own action and is different from provision to a third party as described in this Section.

6. Disclosure of personal information

When you request disclosure of personal information under the APPI, we will confirm that the request comes from you and then disclose it to you without delay (if the personal information does not exist, we will notify you accordingly). This does not apply where we are not obliged to disclose under the APPI or other laws. Please note that a fee of 1,000 yen per request applies to the disclosure of personal information.

7. Correction of personal information and suspension of its use

7-1 If you request, under the APPI, (1) correction of your personal information on the grounds that it is not accurate, or (2) suspension of its use on the grounds that it is being handled beyond the scope of the purpose of use published in advance or that it was collected by deception or other improper means, we will confirm that the request comes from you, conduct the necessary investigation without delay, correct the personal information or suspend its use based on the results, and notify you accordingly. If we decide not to make a correction or suspend use, we will notify you of that decision.

7-2 If you request that your personal information be deleted and we determine that we need to comply with that request, we will confirm that the request comes from you, delete the personal information, and notify you accordingly.

7-3 Sections 7-1 and 7-2 do not apply where we are not obliged to make corrections or suspend use under the APPI or other laws.

8. Retention, deletion, and withdrawal of consent

8-1 Retention period

The information you register (information about your children, transaction records, photographs, profiles, and the like) is retained for as long as your account exists, for the period necessary to provide the Service. Automatically collected information such as access logs and crash logs is retained in accordance with the retention periods set by each information collection module provider, and is erased once those periods expire.

8-2 Deletion of data when you withdraw

You may withdraw from the Service at any time from Settings > Account > Delete account in the app. Once withdrawal is complete, the following information is deleted from our servers.

If you are the creator (administrator) of a family that still has other members, you must first remove those members before withdrawing, so that their data remains consistent. Even after deletion is complete, data may remain in system backups for a certain period, but those backups are erased in due course. Information that we are required by law to retain is kept for the period prescribed by that law.

8-3 Requesting deletion or suspension of use

If you wish to have specific information deleted or its use suspended without withdrawing from the Service, please contact us using the details in Section 9. We will confirm that the request comes from you and respond in accordance with Section 7.

8-4 Withdrawing consent

You may withdraw your consent to the collection of advertising identifiers (IDFA / AAID) and to ad personalization at any time. On iOS, go to Settings > Privacy & Security > Tracking; on Android, go to Settings > Google > Ads. You can also opt out of personalized advertising at https://adssettings.google.com/.

9. Contact for inquiries

For opinions, questions, complaints, and other inquiries regarding the handling of user information, please contact us at the following.

[email protected]

10. Procedure for changing this Policy

We will change this Policy as necessary. However, where a change to this Policy requires your consent by law, the amended Policy applies only to users who have consented to the change by the method we specify.

11. Language

The Japanese version of this Policy is the official text. Even where a translation of this Policy has been prepared, if there is any discrepancy between the Japanese version and the translation, the Japanese version prevails. You can read the Japanese version here.

12. Business operator

Related pages

[Established December 30, 2021]

[Updated August 13, 2026]

[Updated August 21, 2026]