CryptoKara

The product

CryptoKara is a decentralized wallet and DeFi application that brought digital-asset management, token swaps, decentralized application access, and peer-to-peer trading into a mobile experience for Android and iOS.

I worked on CryptoKara as part of the development team, contributing to the React Native application and its blockchain integrations. My work included multi-chain wallet functionality, custom tokens and networks, swaps, an in-app DApp browser, MoonPay integration, staking and farming features, and the peer-to-peer marketplace.

CryptoKara is represented here as a historical product. The original application is no longer available as a current live product, so this page focuses on the team contribution and product scope rather than presenting a current demo.

Purpose

CryptoKara was designed to help users manage assets and access services across multiple blockchain ecosystems from one application.

Using cryptocurrency often involves switching between wallets, exchanges, decentralized applications, and purchase providers. CryptoKara brought these activities together so users could manage their holdings, exchange assets, explore DApps, and participate in DeFi through a shared mobile interface.

The product combined everyday wallet functionality with more advanced features such as custom-network support, staking, farming, and P2P trading.

Multi-chain wallet

The wallet supported asset management across Bitcoin, Ethereum, and Binance Smart Chain, alongside custom-chain and custom-token functionality.

This required accommodating different network behaviors while presenting consistent wallet interactions to users. The wallet experience included:

• Managing assets across supported blockchain networks.
• Restoring existing wallets.
• Supporting multiple accounts.
• Adding and displaying custom tokens.
• Working with custom networks.
• Viewing transaction history.

My contributions included React Native development and blockchain integrations supporting these capabilities.

Wallet restoration and account management

CryptoKara included wallet restoration so users could regain access to an existing wallet within the application.

The application also supported multiple accounts, allowing users to move between different accounts while keeping the displayed assets and activity associated with the correct selection.

These features required coordinating account selection, network context, balances, and transaction information throughout the mobile experience.

Custom tokens and networks

The application supported assets and networks beyond a fixed default list.

Custom-token functionality allowed users to work with additional tokens, while custom-network support extended the wallet’s reach to other compatible blockchain environments. My work involved integrating this flexibility into the mobile experience so the selected network and token information remained consistent across relevant screens and interactions.

Token swaps and cross-chain functionality

CryptoKara included exchange and swap functionality, including cross-chain swap integrations.

I contributed to the mobile flows and integrations used to exchange assets within the application. This brought swap functionality into the wallet experience and connected the user interface with the services handling the exchange.

The work involved accounting for the selected assets and networks and presenting the relevant transaction information to users.

In-app DApp browser

The application included an in-app browser for accessing decentralized applications.

This allowed users to explore and interact with DApps from within CryptoKara, connecting the wallet experience with the broader decentralized ecosystem.

I worked on the DApp browser integration and its place within the mobile application. The feature extended CryptoKara beyond asset storage and transfers by providing access to blockchain-based applications.

MoonPay integration

CryptoKara integrated MoonPay to provide a cryptocurrency purchase option within the product.

My work included connecting the mobile application with the provider’s purchase experience. This gave users an entry point for acquiring cryptocurrency alongside the wallet’s existing asset-management functionality.

Staking and farming

The application included staking and farming functionality, including CAKE-related integrations.

I contributed to the application flows and blockchain integrations supporting these features, bringing DeFi interactions into the mobile wallet. This work involved connecting user-facing screens with the relevant protocols and contract interactions while maintaining the correct wallet and network context.

Peer-to-peer marketplace

I built P2P functionality within CryptoKara, including trading advertisements and payment-method features.

The marketplace provided a way for users to discover peer-to-peer trading opportunities and work with the information needed for those exchanges. My contributions included the interfaces and application logic associated with:

• P2P advertisements.
• Trading-offer information.
• Payment-method selection and management.
• Marketplace interactions within the mobile application.

The P2P system was a distinct part of the product alongside wallet transfers and swap integrations.

Live prices and transaction history

CryptoKara included real-time price feeds using WebSockets and transaction-history views.

Live pricing helped users follow asset values within the application, while transaction history provided visibility into previous wallet activity. These features required coordinating incoming updates with application state and displaying information in the context of the selected account and network.

Mobile architecture and backend integration

The application used React Native for its Android and iOS interfaces, with Redux for shared application state.

The mobile client integrated with blockchain SDKs, smart-contract functionality, external providers, and Node.js REST APIs supporting application services.

The architecture brought together several types of communication:

• Blockchain interactions for wallet and DeFi functionality.
• REST API requests for supporting application services.
• WebSocket connections for live price information.
• Third-party integrations for purchases and swaps.

My work focused on connecting these capabilities to the mobile application and maintaining consistent behavior across the features I contributed to.

Technology stack

My responsibilities

Working as part of the CryptoKara team, my contributions included:

• Developing React Native application features.
• Integrating wallet functionality across supported blockchain ecosystems.
• Working on wallet restoration and account-related experiences.
• Supporting custom tokens and networks.
• Integrating swap and cross-chain exchange functionality.
• Developing the in-app DApp browser experience.
• Integrating MoonPay.
• Working on staking and farming functionality, including CAKE-related features.
• Building P2P marketplace functionality with advertisements and payment methods.
• Connecting mobile screens with backend services and blockchain integrations.
• Working with transaction history and live asset information.

Key engineering challenges

A major challenge was supporting multiple blockchain ecosystems through a consistent mobile interface. Different networks have different transaction behavior and integration requirements, and the application needed to preserve the correct account, asset, and network context across user actions.

The product also combined several different workflows: wallet management, purchases, swaps, DApp access, staking, and P2P trading. Each depended on different services or protocols while sharing the same application state and navigation.

Real-time price updates introduced another source of changing data. Coordinating these updates with account selection and asset information was part of maintaining a coherent wallet experience.

Working on the project required collaboration across the team so mobile functionality, backend services, and blockchain integrations connected correctly.

Delivered scope

CryptoKara brought multi-chain asset management, wallet restoration, custom-token support, swaps, DApp browsing, cryptocurrency purchases, staking, farming, and P2P trading into a mobile wallet available for Android and iOS.

The project reflects my experience contributing to a substantial decentralized application within a team, with hands-on work across React Native, wallet integrations, DeFi functionality, and P2P marketplace development.

Links and status

The supplied product screens preserve the historical CryptoKara store presentation. The page describes my reported team contribution and does not present wallet security, blockchain performance, financial returns, or production availability as an independent audit.