🇯🇵 日本語版はこちら: https://yajirushikobo.com/dlog/privacy-ja
Yajirushikobo (hereinafter referred to as “we,” “us,” or “our”) establishes this Privacy Policy (hereinafter referred to as the “Policy”) regarding the protection of user privacy and personal information for the mobile application “D-Log” (hereinafter referred to as the “App”).
Information Collected and Purpose of Use
To improve the App’s quality, fix malfunctions, and deliver appropriate advertisements, we integrate third-party Software Development Kits (SDKs) in this App. These SDKs may automatically collect certain non-personally identifiable information as detailed below:
Firebase Crashlytics (Google Inc.)
- Information Collected: Crash logs, device model information, OS version, and operational state at the time of the malfunction.
- Purpose of Use: To identify technical causes of errors and crashes in the App and perform prompt updates/fixes.
- More Info: Privacy and Security in Firebase
Firebase Analytics (Google Inc.)
- Information Collected: Screen view history, interaction logs, device language settings, approximate geographic region (country/city level), etc.
- Purpose of Use: To perform statistical analysis of the App’s usage and improve the UI/UX and overall service.
- More Info: Google Privacy Policy
Google AdMob (Google Inc.)
- Information Collected: Advertising identifiers (IDFA for iOS, AAID for Android), ad impression/tap history, etc.
- Purpose of Use: To display personalized ads tailored to the user and measure advertising effectiveness.
- More Info: Google Advertising Policies and Terms
Handling of Diagnosis and Self-Analysis Data
All data generated within the App—including results of the “Values Diagnosis,” “Strengths Diagnosis,” and “Weaknesses Diagnosis”—is stored strictly locally on the user’s device.
This data is never transmitted to, or stored on, any external servers, including ours. You can use the App with complete peace of mind.
Third-Party Disclosure of Information
We do not disclose or provide information collected through the App to third parties, except in the following cases:
- When we have the user’s explicit consent.
- When required by laws and regulations.
- When disclosing or providing information in a statistically aggregated format that does not identify specific individuals.
Disclaimer
We shall not be liable for any damages incurred by the user in connection with the use of this App, except in cases of willful misconduct or gross negligence on our part. The content provided in the App (such as explanation articles) is for self-analysis support and reference purposes only, and does not substitute for professional medical or psychological diagnosis or advice.
Changes to This Policy
We reserve the right to modify this Policy at any time in accordance with revisions to laws and regulations or updates to the App. The modified Policy shall become effective immediately upon its publication within the App or on our website.
Contact Information
For inquiries regarding this Policy or questions about data handling in this App, please contact us via:
- Operator / Organization: Yajirushikobo (矢印工房)
- Contact Email: contact@yajirushikobo.com
Created on: June 3, 2026