Cashu.me is a PWA with NWC and 12 word BIP39 wallet backup. Is there some other reason you are searching for an Android app specifically?
Discussion
wait... @max still doesn't use nostr:nprofile1qyt8wumn8ghj7ct5d3shxtnwdaehgu3wd3skueqpzemhxue69uhky6t5vdhkjmn9wgh8xmmrd9skcqpqxnf02f60r9v0e5kty33a404dm79zr7z2eepyrk5gsq3m7pwvsz2s7szjpe ?!!!
Wouldn't surprise me. He's focused more on on-chain privacy. There's nothing wrong with that.