Based on your request, it seems you are looking to download an APK for a "Story" saver or downloader app. There are several popular tools for this on Android.

If you can tell me the specific developer or functionality, I can help you find the exact file. How To Install APK Files On Any Android

in your settings (Settings > Security or Privacy > Install Unknown Apps).

Version 1.4.63R, designed for saving stories to your gallery. How to Install an APK on Android Download the APK file from one of the sources above.

A well-known tool for saving Instagram stories and live streams.

Here are the safest ways to find and download these types of apps: