I use it with Amethyst & nostrudel.ninja Nostrudel can use the citrine as a local cache, making it run much smoother. Also check out Amber from the same developer @greenart7c3 It is a signing app so you won't have to give your private key to every Nostr app.

GitHub

GitHub - greenart7c3/Amber

Contribute to greenart7c3/Amber development by creating an account on GitHub.

It is available on fdroid too I believe.

And pokey if you want real time notifications. Created by @KoalaSat

GitHub

GitHub - KoalaSat/pokey: Nostr "Pull Notifications" on Android

Nostr "Pull Notifications" on Android. Contribute to KoalaSat/pokey development by creating an account on GitHub.

Yes. Amber is also on Fdroid. I'm using it. That one made sense to me. 😄

Interesting. Although I don't need real time notifications I'll still give it a try.