CrossBorder
New! July 8, 2026A practical Canada/U.S. travel dashboard for the small conversions that slow people down at the border.
CrossBorder helps travellers understand local weather, speed, shopping costs, fuel prices, restaurant tips, customs allowances, nearby help, and border wait times in familiar units and currencies.
- React Native
- Expo
- Travel tools
- Mobile product
Screenshot Gallery
Primary app screens appear first, followed by supporting workflow and detail views.
Key Features
Currency conversion with exchange-rate and card-fee awareness
Speed, temperature, fuel, and efficiency conversions
Shopping calculator with tax and home-currency estimates
Tip calculator with split and home-currency totals
Customs allowance tools, help nearby, and border wait-time utilities
Technical And Architecture Notes
Expo SDK, React Native, TypeScript, and Expo Router
AsyncStorage for local preferences and cached data
Pure domain modules for currency, shopping, fuel, tipping, customs, speed, weather, tax, payment, and travel logic
Frankfurter exchange rates, Open-Meteo weather, local tax/customs data, and CBP wait-time feeds
Offline and degraded-mode behavior with manual fallbacks
AI In This Project
How AI fits into the work while product, architecture, security, and quality decisions stay human-owned.
Used agents to speed up mobile UX iteration, calculator logic, and edge-case checks
Kept calculation behavior grounded in explicit domain rules and user-facing estimate language
Kept privacy, offline behavior, and degraded modes clear while moving quickly
Product Context
Built as a utility rather than a booking, banking, navigation, or customs declaration app
Designed for Canadian travellers in the U.S. and American travellers in Canada
Emphasizes fast answers, large readable numbers, and plain-English estimates