React Native App - JapanGo 日本購

The best budget controlling cross-platform app for Taiwanese Japan-travelers using Expo workflow. It is in closed beta on Google Play now.

Main Features

- Converting JPY to NTD immediately after typing numbers.

- Adding items to cart with an animated classify button.

- Using VictoryChart to plot the user expense.

- Helping users to control their expense by visualizing the budget they set.

- Connecting to an exchange rate API. 

Key Skills

- Publishing a real project to Google Play and App Store.

- Combining stack & drawer navigation.

- Making an API call using async/await.

- Advance gesture handler: pan, fling, long press.

- Customizing a date picker component and publishing it to NPM.

- Managing in-app-purchase using RevenueCat.

- Contructing the logic using Flowmapp

Main Screen

Shopping Cart Screen

Spending Screen