This test is to figure out how good you are with:

• Designing UI layouts
• Using UI libraries
• Translating mock up to design, and paying attention to details
• Making network calls
• Handling errors gracefully
• Improvising to aid functionality

Instructions.

• You are to implement the currency conversion UI below and its functionalities
• MUST be done in the latest version of Swift, using UIKit and Storyboard
• Use any third-party library you need, but be sure to include:
  • Realm Swift
  • Alamofire/Promise Kit
  • SwiftyJSON
• Stay as true to the original design as possible
• Use Fixer.io to get conversion rate data

Design.

source: https://dribbble.com/shots/6647815-Calculator

Bonus points

• Code Comments & Documentation
• Unit and UI tests