Privacy Policy
Last updated: June 9, 2026
Introduction
“StockLog” (hereinafter referred to as “the App”) is an application for tracking purchase prices of subscriptions and manual purchases, and managing next-purchase-date reminders. This Privacy Policy explains how we handle personal information in the App.
Information We Collect
1. Purchase Item Data
The App stores the following data locally on your device only for the purpose of managing purchase items:
- Item name, purchase location, purchase URL, and other item details
- Purchase type (auto-delivery subscription or manual purchase)
- Next purchase date and cycle (days) settings
- Price history (price, date, and memo per purchase)
- Stock count, notes, and item photo
This data is stored only on your device (via SwiftData) and is never transmitted to external servers.
2. Notifications
The App uses push notifications, with your permission, to send next-purchase-date reminder alerts. Notification scheduling is processed only on your device.
3. Advertising Data (AdMob)
The App uses Google AdMob to display banner advertisements. AdMob may collect the following information to optimize ad delivery:
- Advertising identifier (IDFA)
- Device information
- App usage information
- Ad interaction information
For more details, please see Google’s Privacy Policy.
How We Use Information
The collected information is used for the following purposes:
- Providing app functionality (recording and managing purchase items, prices, and next purchase dates)
- Sending next-purchase-date reminder notifications
- Improving app quality and fixing bugs
- Delivering advertisements
Information Sharing
Information collected by the App may be shared with the following third-party service:
- Google AdMob: For ad delivery
Purchase item data and price history are never shared with any third party.
Your Rights
You have the following rights:
- You can change notification permissions in your device settings
- You can limit the use of advertising identifier (IDFA) in your device settings
- You can stop future information collection by uninstalling the App
Data Retention Period
- Purchase item data and price history: Stored only on the device and never transmitted externally by the App
- Notification data: Processed only on-device and never transmitted externally
- Advertising data: Stored according to AdMob policies
Children’s Privacy
The App is not intended for children under 13 years of age. We do not knowingly collect personal information from children under 13.
Security
We implement appropriate technical and organizational security measures to protect your information. However, please understand that no method of transmission over the Internet or electronic storage is 100% secure.
Changes to This Privacy Policy
This Privacy Policy may be changed without notice. In case of significant changes, we will update the “Last updated” date on this page. We recommend that you review this page periodically.
Third-Party Service Privacy Policies
Privacy policies of third-party services used by the App:
Contact Us
If you have any questions or concerns about this Privacy Policy, please contact us:
This Privacy Policy is governed by the laws of Japan.