Last updated: 2026-06-26
LuchSub is a personal watch-decision app. This page describes how the current app experience works based on features that are already implemented, including advertising delivered through IronSource (Unity LevelPlay).
LuchSub lets you create watch moments, save titles to a personal library, add notes and viewing-fit details, review match results, and keep a local pick history. The app is designed to help you choose what to watch from your own saved list.
In the current version, the following information is stored locally on your device:
LuchSub also includes a clear local data action in Settings so you can remove saved watch moments, titles, and pick history from the device.
LuchSub can attach reference metadata to help identify a title during the add flow. This may include poster art, release year, runtime clue, source title, and plot summary.
This app is for entertainment purposes only. Accuracy is not guaranteed.
LuchSub does not record videos or images and is not intended for streaming or video playback.
Movie information, descriptions, and images are provided by TMDB.org and are licensed under CC BY-NC 4.0.
This product uses the TMDB API but is not endorsed or certified by TMDB. All movie-related data, including descriptions and images, are provided by TMDB and remain the property of their respective copyright holders.
Reference metadata is secondary to your local watch moments and viewing-fit fields. It helps recognition and context, but it is not the primary reason a title matches a watch moment.
The current app includes an in-app feedback page under Settings > Support > Send Feedback. On that page, you can type a message and an email address.
In the current build, the feedback screen shows a simulated sending state and returns to the previous page. It does not currently transmit your message or email to a live backend from inside the app.
The current version of LuchSub may display ads to support the free app experience. Ads are delivered through IronSource, Unity’s LevelPlay ad mediation platform, which may work with partner ad networks to serve and measure advertising.
When ads are shown, IronSource and its advertising partners may collect or receive information such as:
This information is used to show ads, limit ad frequency, measure campaign performance, detect invalid activity, and improve ad relevance where permitted by platform rules and your choices.
LuchSub does not sell your personal information. Advertising data is processed by IronSource and its partners under their own privacy policies and applicable platform requirements.
On iPhone and iPad, LuchSub may request permission through Apple’s App Tracking Transparency (ATT) prompt before using the IDFA for advertising or tracking across apps and websites owned by other companies.
You can change your choice at any time in Settings > Privacy & Security > Tracking on your device. You can also limit Apple’s use of your device for advertising in Settings > Privacy & Security > Apple Advertising.
If you decline tracking permission, ads may still appear, but they may be less personalized.
The Settings page may include a link to the official TMDB website for source and attribution information. If you open that link, you will leave LuchSub and visit an external website.
For more information about how IronSource handles advertising data, review the IronSource Privacy Policy.
If you have privacy or support questions, contact ttyydd4631@163.com.