This Privacy Policy (the “Policy”) describes how we collect, use, and manage personal information in relation to the applications (the “Service”) developed and provided by Keisuke Negishi. By accessing or using the Service, you are deemed to have agreed to this Policy.
Analytics
We use analytics tools within the Service to improve the applications and enhance user experience. These analytics are conducted in a manner that does not identify individuals.
This analytics tool collects information such as device details (including device model, operating system, and uniquely assigned identifiers), usage data (such as first launch and update status), approximate location information, and user attributes related to the use of this Service.
The collected information is used solely for the purposes of this Service and will not be used for any other purposes.
Contact Form
When you contact us through the inquiry form regarding the Service, we collect your email address. This email address is used only to respond to your inquiry and will not be used for any other purposes.
The content of your inquiry may be retained for as long as necessary to improve the Service and for the duration of the Service’s operation.
We will not share or transmit the content of your inquiry to any third parties.
Third-Party Services We Use or Integrate With
The Service uses the following third-party services for analytics and advertising purposes:
・Firebase
・Google AdMob
For more information on how these services handle your data, please refer to their respective privacy policies:
・https://firebase.google.com/support/privacy
・https://policies.google.com/technologies/ads?hl=en
In addition, the My単語帳 App, a feature of this Service, integrates with Studyplus through the Studyplus API provided by Studyplus, Inc.
This integration allows users to share their study results from the learning results screen within the My単語帳 App. The provider of this Service does not collect any information related to users’ Studyplus accounts.
For more information, please refer to Studyplus’s Privacy Policy below.
We may review and update this Policy as necessary. Unless otherwise required, we may make changes without prior notice.
The developer shall not be held liable for any damages arising out of or in connection with the use of the Service.
Users of this Service shall also comply with the terms of use, privacy policies, and other applicable policies of any third-party services used or integrated with this Service. The developer of this Service shall not be liable for any issues arising from such third-party services.
If you have any questions about this Policy, please contact us.
go2frontdesk(@)gmail.com
Established: June 5, 2020
Last Updated: March 21, 2026