Kenichi or Kyoko?

If you’re using your iPad, then I can recommend checking out the Tsurukame app instead of doing your reviews in Safari: [iOS] Tsurukame - native app with offline lessons and reviews
Safari in iPad OS supports addons since last year’s iOS / iPad OS update, so you might even be able to install scripts in safari, I’m not sure. But by installing the Tsurukame app, you can do your lessons and reviews in an own app instead of using the website. This app includes some of the functionality for which you would need userscripts on the website, so that’s quite handy. I think the app uses a random voice actor per default

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