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Fastsync is a new feature in the Xwallet app that makes Bitcoin wallets sync in seconds, while also keeping X technology ahead of the curve as SPV slowly phases out. When Fastsync is enabled the X wallet uses our server technology, Blockset to sync, send and receive instantly!
Unlike other iOS bitcoin wallets, X users have the option to disable Fastsync converting the wallet into a standalone bitcoin client. It connects directly to the bitcoin network using SPV mode, and doesn't rely on servers that can be hacked or disabled. If X the company disappears, your private key can still be derived from the recovery phrase to recover your funds since your funds exist on the blockchain.
X utilizes the latest iOS security features to protect users from malware, browser security holes, and even physical theft. The user’s private key is stored in the device keychain, secured by Secure Enclave, inaccessible to anyone other than the user. Users are also able to backup their wallet using iCloud Keychain to store an encrypted backup of their recovery phrase. The backup is encrypted with the Xwallet app PIN.
Simplicity and ease-of-use is X's core design principle. A simple recovery phrase (which we call a recovery key) is all that is needed to restore the user's wallet if they ever lose or replace their device. X is deterministic, which means the user's balance and transaction history can be recovered just from the recovery key.
- Supports wallets for Bitcoin, Bitcoin Cash, Ethereum and ERC-20 tokens, Ripple, Hedera, Tezos
- Single recovery key is all that's needed to backup your wallet
- Private keys never leave your device and are end-to-end encrypted when using iCloud backup
- Save a memo for each transaction (off-chain)
- Supports importing password protected paper wallets
- Supports JSON payment protocol
- Supports SegWit and bech32 addresses
X is available in the following languages:
- Chinese (Simplified and traditional)
- English
- Dutch
- Clone the repo:
git clone git@github.com:xwallet/xwallet-ios.git2 Update submodulesgit submodule update --recursive - Install imagemagick and ghostscript
brew install imagemagick && brew install ghostscript - Open the
xwallet.xcworkspacefile
Add your Blockset client token to your app’s public CloudKit database with a record id of: BlockchainDBClientID
Installation on jailbroken devices is strongly discouraged.
Any jailbreak app can grant itself access to every other app's keychain data. This means it can access your wallet and steal your bitcoin by self-signing as described here and including <key>application-identifier</key><string>*</string> in its .entitlements file.
X is open source and available under the terms of the MIT license.
Source code is available at https://github.com/xwallet