Have you checked out wefwef.app? It's a browser based app (type it into your browser and then add it as an "app" on your homescreen), which I don't normally like, but it functions fairly well. It doesn't quite look like RIF and instead has more of an iOS look to it...but it is also more "bare bones" in appearance than other Lemmy apps seem to be. So it's simple look reminds me of RIF in a way.

So far I've only tried out a few apps tho personally. I'm still hunting for my daily driver as well.

Edit: It does have some missing functionalities but the devs seem quick to add new features