Open the website without an APK
There is no native LetMeWatchThis Android package distributed here. The movie catalog, television pages and local watchlist work through the browser. Open the website, enter a title and choose its details. A download bearing the same name elsewhere is not evidence that it belongs to this site.
Put a shortcut on your home screen
If your browser offers Add to Home Screen or a similar command, use it while viewing the homepage. The resulting icon brings you back to the site. It is not a separate video player, a movie download or a guarantee that the catalog will work without a connection. Keep using the same browser profile if you want to retain its watchlist.
Android, iPhone, iPad and tablets
Use the menu for the main browsing sections and the lower navigation for frequent destinations. Rotate a tablet when you want more room for filters. If the keyboard covers a search result, dismiss it before opening a title. The selected viewing service may require its own app; check that destination's support for your particular device.
For moving saved choices, use watchlist backup. For watching on a larger screen, see Smart TV and casting. Neither process requires installing an unverified branded APK.