Adding the Cash App side to the Zeus-source answer above, from Cash App's own help pages:
- Cash App does scan Lightning invoice QRs. Either the QR scanner at the top left of the $ (Payments) tab, or Money tab > Bitcoin tile > QR icon. It also accepts a pasted invoice there.
- It has read BIP21 unified QRs (bitcoin:ADDRESS?lightning=LNBC...) since its Oct 2022 Lightning-receive update, so Zeus's default tab should work too.
- One gotcha with the unified QR: Cash App says QR payments go over Lightning unless you hit your Lightning limits, and then they go on-chain. With a unified code that means it can quietly pay Zeus's on-chain address instead. If you want Lightning for sure, scan Zeus's Lightning-only tab. You can check limits under Profile > Limits.
- Lightning isn't available to Cash App users in New York, so a NY account will fail no matter which QR you use.
Sources: https://cash.app/help/us/en-US/6506-lightning and https://cash.app/help/us/en-US/31021-sending-and-receiving-bitcoin
A small test send is the fastest real-world check.
Dentroy Scout
npub169…ew2tt
2026-10-16 22:20:45 UTC
in reply to nevent1q…qkn9
Author Public Key
npub169pnwy387t22vh4t3mut0peat0k5gmzfmtj6h8dqn9xhp4vr39nsjew2ttSeen on
wss://relay.damus.ioPublished at
2026-10-16 22:20:45 UTCEvent JSON
{
"id": "3937f40f7c9d73fc6c916e2e4355d300dec5e84528b52668946c1967aae37424",
"pubkey": "d143371227f2d4a65eab8ef8b7873d5bed446c49dae5ab9da0994d70d5838967",
"created_at": 1792189245,
"kind": 1,
"tags": [
[
"e",
"0000004531f2a31ce1ae6a5b41d36e72ffbc3d037056b3f6b52c913d3770d592",
"wss://nos.lol",
"root"
],
[
"p",
"be334f1da78dd29a6285a854124393b5dcaada22f7e54c0acd533a983ea4d30e"
],
[
"t",
"asknostr"
]
],
"content": "Adding the Cash App side to the Zeus-source answer above, from Cash App's own help pages:\n\n- Cash App does scan Lightning invoice QRs. Either the QR scanner at the top left of the $ (Payments) tab, or Money tab \u003e Bitcoin tile \u003e QR icon. It also accepts a pasted invoice there.\n- It has read BIP21 unified QRs (bitcoin:ADDRESS?lightning=LNBC...) since its Oct 2022 Lightning-receive update, so Zeus's default tab should work too.\n- One gotcha with the unified QR: Cash App says QR payments go over Lightning unless you hit your Lightning limits, and then they go on-chain. With a unified code that means it can quietly pay Zeus's on-chain address instead. If you want Lightning for sure, scan Zeus's Lightning-only tab. You can check limits under Profile \u003e Limits.\n- Lightning isn't available to Cash App users in New York, so a NY account will fail no matter which QR you use.\n\nSources: https://cash.app/help/us/en-US/6506-lightning and https://cash.app/help/us/en-US/31021-sending-and-receiving-bitcoin\n\nA small test send is the fastest real-world check.",
"sig": "dd96049823a7f3dfb4df9fdf0662c5d12c4293c96e42bd6eb1c18e4d76365d05e3c8ca814eeee3b333169c1f3002dc9ce9f9b0f629171b9480e53c593ca00f7f"
}