Privacy Policy

Last updated: April 29, 2026

This Privacy Policy explains how "WondayWall" ("the app") handles user information and data.

Introduction

WondayWall is a Windows app that generates wallpapers based on the user's calendar events, RSS news, and interests. The app provider does not collect users' personal information, calendar details, settings, generated images, or usage history during normal use.

However, to provide its features, the app stores data locally on the user's PC and communicates with external services such as Google Calendar, Google AI / Gemini, RSS feed providers, article pages, and image hosts.

Information Stored on the User's PC

The app stores the following information on the user's PC:

The Google AI API key is stored in Windows Credential Manager and is not stored directly in the settings file. These items are managed on the user's PC and are not sent to the app provider.

Google Calendar Data

If the user enables Google Calendar integration, the app uses a read-only Google Calendar scope to retrieve calendar events.

Retrieved calendar data may include event titles, start times, end times, locations, and descriptions. This information is used to build context for wallpaper generation.

Google Calendar authentication tokens are stored on the user's PC. The app provider does not obtain, store, view, or share these tokens.

RSS, Article Pages, and OGP Images

The app accesses RSS feed URLs registered by the user and retrieves article titles, summaries, article URLs, and publication dates. For articles used in wallpaper generation, the app may also retrieve OGP metadata and OGP images from article pages.

RSS providers, article pages, and image hosts may record access logs, IP addresses, user agents, and similar information according to their own policies.

Information Sent to Google AI / Gemini

The app uses the Google AI / Gemini API to generate wallpapers. API requests may include the following information:

This information is sent to Google AI / Gemini using the Google AI API key configured by the user. The app provider does not collect the request contents or generated results. Information sent to Google AI / Gemini is handled according to Google's terms and privacy policy.

API Keys and Authentication Information

The Google AI API key is used only to call the Google AI / Gemini API. Google Calendar OAuth tokens are used only to read calendar event information from Google Calendar.

These credentials are stored on the user's PC and are not sent to the app provider.

Generated Images and History

Generated wallpaper images and generation history are stored on the user's PC. The app applies generated images as the desktop wallpaper. If the user enables lock screen updates, the app also applies generated images to the lock screen.

Generated images and history are not sent to the app provider.

Data Sharing

The app provider does not sell, share, or transfer users' personal information, calendar information, RSS settings, API keys, OAuth tokens, generated images, or generation history to third parties.

However, based on the user's actions and settings, the app communicates with external services such as Google, RSS providers, article pages, and image hosts. Data handled by those external services is governed by their respective terms and privacy policies.

How to Delete Data

To delete settings, history, generated images, and Google Calendar OAuth tokens stored by the app, delete the following folder:

%LocalAppData%\WondayWall\

To delete the Google AI API key, remove the credentials related to StudioFreesia.WondayWall.AppConfig from Windows Credential Manager.

Contact

For questions about this Privacy Policy, contact the following GitHub account:

GitHub account: Freeesia

Changes to This Privacy Policy

This Privacy Policy may be updated due to changes in app features, external services used by the app, or applicable laws and regulations. When changes are made, they will be announced through the GitHub repository or related app pages.