Privacy Policy for Mobile Applications

This privacy policy outlines the guidelines that Takanori Azegami (hereinafter referred to as “the developer”) follows when handling personal information or equivalent information of users in the use of the mobile applications (OSHIStamp for Android and iOS) (hereinafter referred to as “the app”) developed by the developer.

1. Basic Policy

The developer recognizes the importance of personal information, believes that protecting personal information is a social responsibility, complies with laws and regulations concerning personal information, and appropriately acquires, uses, and manages personal information handled in the app.

2. Scope of Application

This privacy policy applies only to applications developed by the developer.

3. App Functionality Overview

This app is a tool for creating and managing timestamps while watching videos. The app displays banner advertisements using Google AdMob.

3.1 App Permissions and Device Access

This app uses the following permissions or device access depending on the platform and features used:

Local storage within the app: Used to save timestamp data and setting information
File access when exporting or importing backup data: Used only when the user explicitly performs backup or restore operations

3.2 Use of WebView

This app uses WebView to display some content. The privacy policies of the respective websites apply to web content displayed through WebView. Information entered in WebView may be collected by the operators of the displayed website, not by the developer.

In this app’s WebView, websites displayed may use cookies or similar technologies. These cookies are necessary to provide website functionality and are stored in the WebView’s local storage, but the developer does not collect or use this information. Browsing data in WebView is deleted when the app is uninstalled.

4. Data Handling

4.1 Stored Data

This app stores the following non-personal information in the device’s storage:

Timestamps created in the app
Setting information created in the app

No personally identifiable information is stored, and the stored information is not sent to the developer

4.2 Data Storage Location and Period

Data in the app is stored in the device’s internal storage. The stored data will be retained until the application is uninstalled.

4.3 Data Backup and Export

This app provides functionality to backup and export non-personal information such as created timestamp data and setting information for user convenience. Exported data is stored in the device’s storage and remains under the user’s control.

Please note the following regarding the handling of exported data:

Exported data should be managed at your own responsibility
Exported data does not contain personally identifiable information, but may include information related to usage history, such as YouTube video timestamps
If you share exported data with third parties, please thoroughly review the content and do so at your own responsibility

4.4 Google Drive Integration (Optional)

This app provides a Google Drive integration feature that users can optionally enable.

Purpose of Use:

Data backup (saving to Google Drive)

Data Handling:

Only operates when explicitly authenticated and enabled by the user
When the feature is enabled, data is automatically saved to Google Drive when created or updated
Data is stored only in the user’s Google Drive account in an app-specific backup folder, and the developer cannot access it

4.5 Anonymous Error Data Collection

This app uses an external service to collect anonymous error data for the purpose of improving quality and fixing issues.

The collected information may include app crash logs, error messages, and device details such as the OS version and model at the time of occurrence.

No personally identifiable information (such as name, email address, or unique device ID) is collected.

The collected data is used solely for investigating and improving app issues and will not be sold or shared with third parties.

4.6 Data Collection by AdMob

This app uses Google AdMob, an advertising service provided by Google Inc.

AdMob may automatically collect certain information, such as the advertising ID or other device identifiers, to display personalized ads based on the user’s interests.

For more information on the data collected and how it is used, please refer to Google’s privacy and advertising policies:

5. Privacy Protection Measures

5.1 Non-Collection Policy for Personal Information

The developer does not publish applications that require functions to collect personal information.

Please refer to section 4.6 for details on AdMob-related data collection.

No personal information is stored, and only non-personal information necessary for the functionality of the app is stored in the user’s device storage.

5.2 Ensuring Information Accuracy

The app always maintains correct information for data entered by users.

5.3 Security Management Measures

The app does not transmit information to servers for purposes other than the app’s functionality to prevent leakage or loss of information.

5.4 Provision of Information to Third Parties

The applications developed by the developer will not provide any information provided by users to third parties without the user’s consent. If third-party sharing becomes necessary in the future, the developer will present the information to be provided and the purpose of provision, and will only share with third parties after obtaining the user’s consent.

6. User Rights and Choices

For applications developed by the developer, please read this privacy policy before installing the application. By installing the app, you are deemed to have agreed to this privacy policy.

6.2 Data Deletion Method

Users can delete data stored in the app from the settings menu at any time. Additionally, all data will be deleted when the app is uninstalled.

7. Children’s Privacy

This app does not intentionally collect information from children under the age of 13.

8. Contact Information

For inquiries regarding the application or the handling of personal information, please contact the following email address:

Email: t.azegami213@gmail.com

9. Formulation and Update Dates

Formulation date: 2025/4/3
Last update: 2026/3/18

Privacy Policy for Mobile Applications