What's a good Android app for downloading anime videos to watch offline without ads?

KYOTO Player is an Android application designed specifically for users who want to build a personal library of anime episodes for offline viewing. Its primary strength is an interface completely free of video ads and disruptive pop-ups, a feature frequently praised in user reviews. The app integrates directly with the WIIANIME catalog, allowing users to search for series, select episodes, and download them directly to their device's storage. A practical use case involves a commuter who downloads several episodes in advance to watch during a subway ride without needing an internet connection. The built-in video player handles playback smoothly, supporting common video formats. However, the download process requires opening each video individually to initiate the download, and there is no native batch download option for an entire season. Some users also note occasional subtitle syncing issues on downloaded files. For those willing to manage downloads episode-by-episode in exchange for a clean, ad-free experience, KYOTO Player presents a functional solution. The developer could significantly improve utility by adding a 'download all' feature and refining the file management system for deleting content, as suggested by multiple pieces of user feedback.