Which one do you use to summerize videos?

If you know Javascript you could maybe create a bookmarklet that does this. I just don’t know if it can access your clipboard.

Does it properly handle takeouts exif data?

They’re already available on “vanilla” Firefox for android.

How much does a Eaton ups cost?

Have you looked into Flutter? It uses Dart and can compile to native apps for android, ios, windows, Mac, Linux, and web.