Myntkaup

Our primary goal was to enhance the platform by adding more cryptocurrencies, refining the trading process, and integrating new financial tools. We also optimized the back-end, refined both the mobile and web versions, and improved the UI/UX for a great user experience.

A key challenge was building the PNL feature from scratch to track profit and loss accurately using transaction data and historical exchange rates. We also had to integrate multiple cryptocurrencies while keeping transactions secure and meeting regulations.

We refreshed the platform’s interface while keeping its signature blue theme, making it more modern and easy to use. The layout was optimized for both mobile and web to ensure a smooth experience across devices. We also built an admin panel to track transactions and analytics.

The home screen gives users an overview of their crypto holdings, showing their total balance, recent transactions, and live market updates. Users can easily switch between different cryptocurrencies, track price changes, and access key financial insights in real-time.

Users can easily buy Bitcoin, Ethereum, and other cryptocurrencies using USD or EUR. They can enter the exact amount or pick a percentage of their balance, like 25%, 50%, or 100%. Before completing the trade, they get a preview of the latest exchange rates.

The platform supports a growing list of cryptocurrencies, including Bitcoin, Ethereum, USDC, and various altcoins. Since each currency has a different number of decimal places, we adjusted the system to make sure transactions are processed correctly.

Profit & Loss tracking is a key feature of the platform, which allows users to monitor their portfolio performance over different timeframes (7 days, 30 days, 90 days, or all time). Built from scratch, this feature accurately calculates gains and losses by processing transaction history and matching each trade with historical exchange rates. Interactive charts were implemented using React Native Skia to make data easy to understand.

Users can easily add or withdraw funds through bank transfers or cryptocurrency transactions. Bank deposits allow ISK or EUR transfers via an integrated payment system, while crypto deposits generate a unique wallet address with a QR code for quick transfers. Withdrawals work the same way — users can send money to their bank account by selecting a currency and entering their details or transfer crypto by manually entering a wallet address or scanning a QR code.

Users can send cryptocurrency gifts within the app. The system generates a digital gift certificate that recipients can redeem through the platform, making it easy to transfer crypto to friends and family in just a few taps.

Users can review past trades, deposits, and withdrawals through a detailed transaction history. For tax and accounting, they can generate balance reports for a selected period and export them in PDF, Excel, or CSV formats.

The platform includes an admin dashboard for managing user accounts and monitoring transactions. Admins can track deposits, withdrawals, and trading activity in real-time.

The platform now serves 20,000+ users in Iceland and ranks #1 in the finance category on the App Store. The improved UI, added trading features, and regulatory compliance updates have made Myntkaup a leading cryptocurrency exchange in the region.