Where it is? I search the app store and couldn't see it.
If you run a #nostr client that supports Wallet-Connect like #Amethyst and your own node with nostr:npub1aghreq2dpz3h3799hrawev5gf5zc2kt4ch9ykhp9utt0jd3gdu2qtlmhct, try out wallet connect for easier #zaps without ever leaving your app.
Discussion
The the link, currently it's in Albys community appstore. You can add this under appstore -> community appstores