Here are just a few of the iOS projects I’ve worked on, some to test functionality others as passion projects/learning purposes. One uses WatchKit and an interactive color wheel on the iPhone that changes what's being drawn on the Apple Watch. Another parses data from an API to quickly see what Bitcoin converts to in different currencies. Additionally, a Weather App copycat and an app that randomly generates players with a rating system.
All shapes drawn in code.
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Using CoreLocation.
Rating system to safely hydrate with friends.