Cryptocurrency Tracker

The core product idea was to reduce friction between market awareness and personal action. Instead of treating charts, watchlists, and portfolio data as disconnected modules, the app brings them into one mobile workflow so users can scan movement, inspect a coin, and compare that movement against their own positions without context switching.

That required a more editorial approach to information density. The interface favors strong hierarchy, quick-glance summaries, and clearly separated secondary detail so the product stays readable even when the data stream itself is volatile.

The app was built with React Native and Expo to keep the mobile stack efficient across platforms while preserving a fast iteration loop. Firebase handled persistence and real-time synchronization for user-specific data such as saved assets and portfolio state, while CoinLore API data powered public market information.

Those concerns were kept deliberately separate. Market data is inherently volatile and externally sourced, while portfolio data is personal and stateful. Splitting those responsibilities made it easier to reason about freshness, fallback behavior, and how aggressively each layer should update.

A large part of the work was deciding what should feel immediate on a small screen. The first layer of the UI surfaces price, movement, and watchlist context with minimal visual interruption. Deeper statistics are available, but they do not compete with the initial decision surface.

That balance matters in finance products. When everything is highlighted, nothing is prioritized. The app uses restraint so users can move from scan to detail naturally instead of fighting a dashboard that tries to announce every metric at once.

Real-time interfaces can feel broken even when the data is technically current if updates cause visible instability. To avoid that, the data flow was tuned to reduce unnecessary churn and keep transitions predictable when values changed frequently.

This made the app feel more trustworthy. Users do not only judge accuracy in products like this. They also judge whether the interface behaves with enough composure that they can read and act on the information comfortably.

The final result is a cleaner mobile market tracker that puts the right signals in front of the user quickly while still supporting deeper portfolio workflows. It also served as a strong exercise in balancing real-time data demands with product readability.

As a project, it reflects the kind of mobile work I care about most: interfaces that stay fast, focused, and legible under changing conditions instead of relying on visual noise to feel sophisticated.