You have a couple options. Install it to your homescreen as a PWA or install nostr:nprofile1qqsyv47lazt9h6ycp2fsw270khje5egjgsrdkrupjg27u796g7f5k0spzemhxue69uhk2er9dchxummnw3ezumrpdejz7qgwwaehxw309ahx7uewd3hkctcprdmhxue69uhkummnw3ez6vfwde3x7tnpdenkzmnf9e3k75xqss4 Go and connect to CoinOS using Nostr Wallet Connect. The connection QR can be found in the CoinOS wallet settings.