v0.2.0 — On-Chain Bitcoin, Offline Payments & Nostr Ecash

Bey Wallet v0.2.0

From Lightning-only to a full-featured Bitcoin & Nostr Ecash Wallet.
This release brings on-chain Bitcoin transactions, highly optimized offline payments, dynamic username registrations, and a collection of premium privacy toggles.

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On-Chain Bitcoin Support

Bey Wallet now supports native on-chain transactions:

• Bitcoin Deposits: Receive satoshis directly via on-chain addresses. Balances are automatically credited to your secure ecash wallet.
• Bitcoin Withdrawals: Pay to any on-chain Bitcoin address directly from your ecash holdings.
• Auto-Quote Verification: An automated background checker monitors and resolves pending on-chain mint/melt quotes seamlessly.

Offline Payments, Reimagined

Sending ecash offline no longer requires an exact denomination match:

• Offline Optimization Engine: A new subset sum algorithm automatically finds the best proof combinations for any requested amount (exact match, underpay, or overpay options).
• NFC tap-to-pay: Enjoy seamless, local transactions even when you have no internet access.

Privacy & Display Controls

Customize your workspace for public usage:

• Hide Balance: Long-press your wallet balance on the home screen to mask it. Long-press again to reveal.
• Primary Currency Toggle: Configure display units to showcase either SATS or your local fiat currency globally.
• ₿ Symbol Mode: Toggle standard SATS text formatting with the official Unicode ₿ symbol.

Encrypted Ecash Sharing via Nostr

• Relay-Backed Shares: Publish encrypted ecash tokens to Nostr relays using NIP-44 v2 encryption and kind 30078 custom events. Tokens are discoverable and decryptable only by the designated recipient.
• Addresses Normalization: Contacts, npubs, and profiles are auto-normalized on save and boot.

NIP-05 Usernames

• Deterministic Identifier: Every wallet automatically derives a unique, human-friendly username from its Nostr public key (e.g. cozypandad202).
• Free Username Registration: Register a free @bey.cash NIP-05 username signed directly by your Nostr credentials.
• Permanent Dismissal: Prompt sheets and warning cards now support permanent dismissal if you choose to back them up or set them aside.

Performance & Optimization

• SQLite tuned: SQLite now operates with WAL (Write-Ahead Logging) mode, an 8MB cache size, normal sync, and lazy-initialized database connections to speed up app cold-starts.
• GC Churn Removal: Caching layers introduced for Intl.NumberFormat instances to prevent list scrolling stutters.
• Optimize Wallet: A new consolidation dashboard merges fragmented small ecash proofs into larger denominations for faster future payments.

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Release Assets

• Android APK: Download the compiled BeyWallet-v0.2.0.apk below for manual installation.
• Full Changelog: For a file-by-file list of improvements and statistics, view the CHANGELOG.md in the repository.

Built for Bitcoin. Encrypted by Nostr. Yours by default.

v0.1.0 (Major Update)

Release Notes v0.1.0 🚀

This huge update introduces significant enhancements to Bey Wallet, focusing on deep Nostr integration, advanced P2PK (Pay-to-Public-Key) payments, and powerful NFC capabilities. We've completely revamped the user experience from onboarding to everyday transactions.

Major Features

Nostr Integration & P2PK Payments

• Encrypted P2PK Ecash: Send and receive secure, encrypted Cashu ecash payments natively via Nostr.
• Nostr Inbox Management: A dedicated, unified inbox for handling all your Nostr ecash transactions and pending requests seamlessly.
• NIP-05 Registration & Lookup: Register your own bey.cash user handles natively (integrated with zaps.lol) and look up other users on the network.
• Contact Management: A robust contacts system featuring search, detailed user profiles, and favorites list.
• Background Listener Service: A reliable background Nostr service that silently listens for and receives Cashu payments even when you are not actively interacting with the app.

NUT-18 Ecash Requests

• Seamless Payment Requests: Generate and send ecash requests directly to other users with full NUT-18 support.
• Request Tracking: Comprehensive payment request generation and tracking integrated right into your transaction history.

Deep NFC & HCE Capabilities

• NFC Token Sharing & Receiving: Seamlessly share and receive ecash tokens via NFC.
• Tag Writing Capabilities: Write pending tokens directly to physical NFC tags.
• HCE (Host Card Emulation) Support: Foundational updates for seamless, mobile "tap-to-pay" ecash functionality.

Core Wallet & UX Enhancements

• Redesigned Home Screen: A streamlined, upgraded interface optimized for quick actions, contacts viewing, and easy balance management.
• Explore Screen: A brand new hub for mint discovery, allowing you to easily find and add trusted mints.
• Enhanced Onboarding & Security: A completely revamped onboarding flow featuring robust, app-wide biometric lock support.
• Advanced Token Handling: New intuitive layouts for pending tokens, modular token input processing, and highly detailed transaction history screens.
• Cross-Platform Readiness: Added web-specific HTML configuration for seamless cross-platform deployment.

🛠️ Fixes & Improvements

• Performance: Updated Android event dispatching for @shopify/flash-list ensuring butter-smooth scrolling.
• UI Architecture: Complete modularization of modal layouts, routing, and tab navigation.
• Token Utility: Improved Cashu token parsing logic, handling of Peanut-encoded Cashu tokens, and better UI for transaction confirmations.

What's Changed

• Thehussein by @thehussein01 in #2
• Thehussein by @thehussein01 in #3

New Contributors

• @thehussein01 made their first contribution in #2

Full Changelog: v1.1.1...v0.1.0

Bey Wallet v1.1.1 - The Initial Release: Modular Ecash for Everyone

Welcome to Bey Wallet ⚡️

Bey Wallet is a high-performance, privacy-first Cashu ecash wallet built for the Bitcoin and Nostr ecosystems. Our mission is to make ecash accessible, fast, and secure with a premium mobile experience.

🌟 What is Bey Wallet?

Bey Wallet is more than just a place to store tokens. It is a local-first, modular platform that integrates:

• Cashu Protocol: Seamlessly manage ecash across multiple trusted mints.
• Nostr Identity: Native npub/nsec generation from your wallet seed for P2PK payments and social sync.
• Deterministic Privacy: Your entire balance and history can be restored across any device using just a 12-word seed phrase.

✨ Key Features in this Version

• Streamlined Onboarding: Start using ecash in seconds with one-tap connection to reliable community mints.
• Local-First Architecture: Your keys and transaction data never leave your device, stored securely in a local high-performance database.
• Smart Backups: Export and import your entire wallet state (mints, settings, and keys) via encrypted .bey files.
• Premium UI/UX: Built with Tamagui for a fluid, themeable interface that respects mobile safe areas and system navigation.
• Advanced Scanner: Intelligent QR and UR-encoded sequence detection for Cashu tokens and P2PK keys.

🛡️ Security

• Apache 2.0 Licensed: Open-source with professional-grade patent and legal protection.
• Biometric Guard: Optional Face ID/Touch ID or passcode protection for all sensitive operations.

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📦 Installation

Download the BeyWallet-v1.1.1.apk attached below to install on your Android device.

Made with ❤️ for the Bitcoin & Nostr communities.