Can’t scan code
I scan a code, it vibrates, then doesn’t add the wallet. Doesn’t work.
Archived App
This is an archived listing of the app previously available on the App Store.Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.
About
This open-source Bitcoin wallet allows you to generate an unlimited number of payment invoices from an extended public key (xpub). It verifies address usage on the blockchain, providing visual cues for security. The app operates entirely offline, ensuring your private keys remain secure on your device.
✓Generate unlimited Bitcoin invoices
✓Watch-only wallet for enhanced security
✓Offline operation
✓Address usage verification
✓BIP21 compatible invoices
✓Encrypted xpub storage
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What's New in X
1.1
March 8, 2019
-Now see if the address has ever been used, the background color will turn green if unused, red if used, orange if no wifi connection. -Balance will also display above the address label. -Clarifications and spelling fixes in info page.
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FAQ
What is X-PUB?
X-PUB is an open-source Bitcoin watch-only wallet. It allows you to generate an infinite amount of invoices from an extended public key (xpub) without storing your private keys on your device. It operates 100% offline.
How does X-PUB ensure security?
X-PUB stores your xpub encrypted with a random key in your device's keychain, making it secure even from jailbroken devices. It also checks if an address has been used on the Bitcoin blockchain, alerting you visually.
Can I use X-PUB offline?
Yes, X-PUB works 100% offline with no internet connection required. The app does not share any data from the app to the internet.
What Bitcoin derivation paths does X-PUB support?
X-PUB is designed to work with BIP39 generated xpubs that use the BIP44 derivation path. This is the default option on https://iancoleman.io/bip39/.
How does X-PUB indicate address usage?
If an address has been used on the Bitcoin blockchain, the background turns red. If it has never been used, the background turns green. If the app is offline, the background remains orange.
What information can I include in an invoice with X-PUB?
You can enter an amount denominated in Bitcoin and a description label. This information is BIP21 compatible, which is supported by most well-known Bitcoin wallets.
What is the update frequency for X-PUB?
The latest version is 1.1, last updated on March 8, 2019. Future updates will depend on developer activity.
What devices does X-PUB support?
X-PUB is available for iPhone and iPod devices. It has an age rating of 4+.
