CashDrop
APP PROTOTYPE
{{g.name}}
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CashDrop

Cash you can hand over in a message.

Seal shielded ZEC in a private link. They claim it when they’re ready, even if they don’t have a wallet yet.
HOW IT WORKS

Three moves. No address swap.

Seal it
Pick an amount. We make a one-time shielded envelope on this device and you fund it from your wallet.
Send it
Share the claim link or QR card through a private chat, or hand it over in person.
They claim it
They open the link, see it verified on-chain, and move it to their own shielded wallet.
Not claimed yet? You can take it back from your drops at any time before they do.
THE ONE RULE
The link is the money.
A CashDrop link works like a folded banknote. Whoever holds the full link can open it.
Keys are created and kept on this device only.
1 OF 3 · SEAL
TESTNET
MAINNET
They will receive
ZEC
They receive{{form.receive}} ZEC
Claim fee, reserved0.0001 ZEC
You fund{{form.fund}} ZEC
Private note (optional)
Travels inside the link only. Never written on-chain.
Network
2 OF 3 · FUND
TESTNET
MAINNET

Fill the envelope

Send exactly {{ad.fund}} ZEC from any shielded wallet.

{{qr}}
{{ad.tempAddr}}
{{f.label}}
Closing this screen is fine. Your drop is saved on this device.
3 OF 3 · SHARE
TESTNET
MAINNET
Funded and confirmed

Now hand it over.

Pick a private channel. Whoever opens this link first can claim it.
CashDrop
TESTNET
MAINNET

Your drops

Saved on this device only
Waiting to be claimed
{{stats.waiting}} ZEC
Claimed so far
{{stats.claimed}} ZEC
DROP {{ad.id}}
TESTNET
MAINNET

{{ad.title}}

{{ad.sub}}
{{e.label}} {{e.time}}
CashDrop
TESTNET
MAINNET
FOR YOU

Someone sent you a private CashDrop.

{{verify.label}} 0.0101 ZEC inside
{{c.label}}
Anyone with this link can claim it. Don’t forward it or screenshot it.
0.0100 ZEC
TESTNET
MAINNET

Where should it go?

Paste a shielded address
{{addrCheck.msg}}
or
REVIEW
TESTNET
MAINNET

One last look.

CLAIM RECEIPT · CD-7Q4K
In the envelope0.0101
Network fee-0.0001
You receive0.0100 ZEC
Going to
{{addrShort}}
{{destLabel}}
The transaction is built and signed on this device. The explorer will show a shielded transaction, nothing more.
{{slider.label}}
CashDrop
TESTNET
MAINNET

It’s yours.

0.0100 ZEC {{confirm.sub}}

Confirmations{{confirm.n}} of 3
tx 4c7e…a91bView on explorer
This link is now empty. You can delete the message it came in.
CashDrop
MAINNET

This envelope is already empty.

The money in this link has already moved on-chain. If it wasn’t you, ask the sender: they may have taken it back, or the link reached someone else first.

Status checked{{checkedAt}}
CashDrop
TESTNET
TEST MONEY

This drop holds testnet ZEC.

Testnet coins are for trying things out and have no value. To claim it you need a testnet shielded address, starting with utest1.

This linkTestnet
Your appMainnet
NEW WALLET · 1 OF 2

Your recovery phrase.

These 12 words are your wallet. Write them on paper, in order. Anyone with them controls your money, so never type them into a chat.

{{w.n}}{{w.word}}
Created on this phone. CashDrop never sees it.
NEW WALLET · 2 OF 2

Quick check.

Look at your paper. Which word was number 4?

{{seedMsg.text}}
Once confirmed, we fill in your new shielded address and take you back to your CashDrop.
CashDrop
TESTNET
MAINNET
{{st.eyebrow}}

{{st.title}}

{{st.body}}

{{r.k}}{{r.v}}

Take back {{ad.amountStr}} ZEC?

The money moves back to your wallet and the link stops working. If they claim at the same moment, whichever transaction confirms first wins.

Returns to{{ad.returnAddr}}
Network fee0.0001 ZEC

QR card

Print it, fold it into a card, hand it over. Whoever scans it can claim it, so keep it out of photos.

{{claimQr}}
{{ad.id}} · {{ad.amountStr}} ZEC

Copy the money?

Copying puts the full link on your clipboard, where other apps and clipboard history can read it. Sharing directly is safer.

cashdrop.example/claim#{{ad.secretMask}}

The drop will wait.

Install any Zcash wallet that supports shielded addresses and back up its recovery phrase. Then open this link again and paste your new address.

01Keep this message. The link is the money.
02Set up a shielded wallet.
03Come back and claim. The sender can still take it back until you do.
{{toast}}