How the Kranox wallet works

Kranox is a self-custodial Monero wallet. Your seed and your keys are made on your device and stay there. There is no account and no sign-up, and Kranox Labs never holds your coins.

To see your payments and to send new ones, the app talks to a Monero node. You choose that node, and you can run your own.

No build is out yet. We are testing the first one on macOS, on stagenet, the test network of Monero. Stagenet coins have no value, so a mistake costs nothing while the wallet gets its first real use.

Stage

In development

Platform

macOS

Network

Stagenet

Mainnet comes when sending and receiving have proven safe on stagenet. Next on the list are a privacy check before each send, Touch ID to unlock, and pay by name. Follow @kranoxlabs on X to watch the build.

There is nothing to install yet. When a build is ready, you'll download it from the downloads page, next to the hash of each file, so that you can check a file before you open it.

You can also build the app from its code. The steps are under Source code.

On the first start, Kranox offers two ways in: create a new wallet, or restore one from its seed.

1. 01

   Choose a password

   Type it twice. It needs at least 8 characters, and it locks the wallet on this device.

2. 02

   Write down your seed

   Kranox shows 25 words. Write them on paper in this order, and keep the paper offline.

3. 03

   Open the wallet

   Tick the box that says you wrote down all 25 words, then open your wallet.

Restore brings a wallet back from its 25 words, on a new device or after a reinstall.

1. 01

   Enter the seed

   Type the 25 words in order, with a space between them. Capital letters and extra spaces do not matter.

2. 02

   Add a restore height

   This is optional. It tells Kranox from which block to look for your payments. See Restore height.

3. 03

   Choose a password

   It locks the restored wallet on this device. It does not have to match the password that you used before.

Kranox then scans the chain for your payments. The first scan can take a while, so leave the app open until it shows Synced.

The password encrypts the key file of your wallet on this device. Kranox does not store it and cannot recover it. If you lose it, your seed still restores the wallet.

Lock

Lock in the sidebar, or Lock now in Settings, closes the wallet. Your password opens it again.

Unlock

A locked wallet shows nothing until you enter the password.

Show seed

Settings › Seed shows your 25 words after you enter your password.

Quit

When you quit the app, Kranox closes the wallet and saves its file first.

Receive shows an address of your wallet as a QR code and as text. Copy it, or let the payer scan the code.

Give each payer a new address with New address. All of them belong to the same wallet and the same seed, and an outsider cannot tell that two of them belong together.

A payment shows up when the wallet has caught up with the chain. You can spend it after 10 confirmations, about 20 minutes.

1. 01

   Enter the address and the amount

   Kranox checks the address: its length, its checksum, and its network. An amount takes up to 12 decimals, after a point.

2. 02

   Review the payment

   Kranox builds the payment and shows the network fee and the total. Nothing has left your wallet yet.

3. 03

   Send now

   The node takes the payment, and you get its transaction ID. A block confirms it in about 2 minutes.

You can send your unlocked balance only. Coins that arrived in the last 10 blocks wait for their confirmations first.

Activity lists every transaction of the wallet, the newest first. Home shows the latest 5.

Received

A payment into the wallet. The row names the subaddress that got it.

Sent

A payment out of the wallet, with its fee.

Pending

The network has the transaction, but no block holds it yet.

Failed

The transaction never made it into a block, so no coins moved.

Confirmations

The number of blocks since the block with the payment. After 10, the coins are unlocked.

Copy ID

Copies the transaction ID, the public name of a transaction on the chain.

A node keeps a copy of the Monero chain. Kranox asks it for new blocks every 20 seconds and sends your payments through it. The node never sees your keys.

Default node

node3.monerodevs.org:38089Copy

Run by

A third party, not Kranox Labs

Change it

Settings › Node

1. 01

   Open Settings

   The Node card holds the address of the node in use.

2. 02

   Enter the address

   Write it as host and port, such as node.example.org:38089. An IPv6 address goes in brackets.

3. 03

   Save node

   Kranox connects to the new node at once and keeps it for the next start.

Node online

The node answers, and the wallet follows the chain.

Node offline

The node does not answer. Check its address in Settings, or pick another one.

Node too old

The node runs an old version of Monero. Pick another one.

Your own node gives you the most privacy: no third party sees your IP address or the moments when your wallet connects. It needs a computer that stays online, with room on its disk for the chain.

The node software of Monero is called monerod. Get it from the downloads page of the Monero project, then start it for stagenet:

monerod --stagenet

When it runs on the same computer as Kranox, enter 127.0.0.1:38081 in Settings › Node. The first sync of a node takes hours, not minutes.

On most chains, anyone can read who paid whom, and how much. Monero hides the sender, the receiver, and the amount of every payment, by default.

Sender

Ring signatures. Each coin that you spend hides among 15 decoys from the chain, so an outsider sees 16 possible senders.

Receiver

One-time addresses. Each payment goes to a new address on the chain, which only the receiver can link to a wallet.

Amount

RingCT. The chain keeps amounts hidden and still proves that no payment creates coins from nothing.

Subaddresses

Separate addresses for separate payers, all spent from one seed.

Kranox uses the wallet code of the Monero project for keys, addresses, and transactions. It does not write its own cryptography.

Monero hides the payment, but the node that your wallet talks to can still see your IP address, when your wallet connects, and the transactions that you send through it.

• Your own node shows this to nobody else.
• A node that you trust is the next best choice.
• The app sends nothing to Kranox Labs: no analytics, no crash reports, and no usage data.

• Write the 25 words on paper, in order, and keep the paper in a safe place.
• Keep the words out of photos, cloud notes, mail, and chats.
• Never type them into a website. Kranox Labs will never ask for them, and anyone who does wants your coins.
• Check the words now and then in Settings › Seed, with your password.

Monero has a main network and test networks, each with its own addresses. Kranox refuses an address of another network than the wallet.

Kranox counts in XMR, with up to 12 decimals. The smallest unit is the piconero, a trillionth of an XMR.

1 XMR

1,000,000,000,000 piconero

Decimals

Up to 12, after a point

Amounts on screen

Cut at the last digit shown, never rounded up

Network fee

Shown before you send

The network fee goes to the miners of Monero, not to Kranox Labs. Kranox adds no fee of its own.

The restore height is the block from which Kranox looks for your payments. Monero makes a block about every 2 minutes.

• Leave the field empty to scan from the first block. Nothing is missed, but the first sync takes longer.
• Enter the height of a block from a little before the day you made the wallet, to save time.
• A height that is too high skips your earliest payments. When in doubt, enter a lower number.

A block explorer of Monero shows which block belongs to a date.

Seed

The 25 words that hold your keys. The last word is a checksum of the others.

Subaddress

An extra receive address of your wallet. It starts with 8 on mainnet and with 7 on stagenet.

Node

A computer that keeps the Monero chain and passes your payments on.

Confirmation

One block on top of the block that holds your payment.

Unlocked balance

The part of your balance that you can send now.

Restore height

The block from which the wallet looks for your payments.

Stagenet

The test network of Monero. Its coins have no value.

Transaction ID

The public name of a transaction on the chain.

$KRX is the official token of Kranox. It trades on Pons v2 on Robinhood Chain.

Ticker

$KRX

Chain

Robinhood Chain

Trade

Pons v2

Supply at launch

1,000,000,000

Contract

0x43c41b57cf771433d14c7108c650e712759d58aeCopy

For now the Kranox wallet holds XMR only, so keep $KRX in a wallet that supports Robinhood Chain.

How a launch on Pons v2 works, from its docs:

• The whole supply starts on a bonding curve. Nobody, us included, holds tokens before trading opens.
• When the curve sells out, the token moves to a Uniswap v4 pool. Its liquidity is locked for good, and nobody can pull it out, not us and not Pons.
• Nobody can mint more tokens, freeze a wallet, or raise the tax after the launch.

Right after the launch we burned 94,144,289 $KRX, 9.41% of the supply, by sending them to the dead address. Nobody can move them again, and anyone can check the transaction on Blockscout.

Each trade of $KRX pays a tax. Pons v2 fixes it at the launch, and nobody can raise it later. We split our share of it in half:

50%

Rewards for $KRX holders, marketing, and more

50%

Development of the Kranox apps, plus buybacks and burns of $KRX

• Copies named Kranox already trade on Robinhood Chain, Base, BSC, and Solana. Some use the ticker $KRX and an address that ends in the same characters as ours. None of them is ours.
• Check every character of the contract address against this page or @kranoxlabs before you buy, not only the first and last few.
• Nobody from Kranox Labs will DM you to sell $KRX.

A new token can swing hard and can lose all of its value. Only buy what you can afford to lose. Nothing here is financial advice.

Pons and Robinhood Chain are run by other teams. Kranox Labs isn't part of either.

The code of the app is public on GitHub, so anyone can read what it does with your keys before trusting it with a coin.

Repository

Kranox-Labs/Kranox

Built with

Flutter, and the wallet code of Monero through monero_c

Bugs

Open an issue

git clone https://github.com/Kranox-Labs/Kranox.gitcd Kranox# Fetch the Monero library and check its digest, oncesh tool/fetch_monero_c.sh# Install the pinned Flutter, then run the appfvm installfvm flutter run -d macos

You need Xcode, CocoaPods, and fvm, which pins the Flutter version of the project.

Mail

[email protected]

Bugs and ideas

Open an issue

News

@kranoxlabs

Privacy policy

What the site and the app collect

Disclosures

The risks of early software and of holding your own keys

Terms of use

The terms for the site and the app

Kranox is independent. The Monero project does not endorse it.