[React Native] Required a RN expert for enhance a RN App and fix a issue -- 2

I have an app wrote in React Native, the main feature of the app is to capture OR load an image and read the colour code from the image based on X,Y coordinates. It was okay for android , however there is some issue spotted on iOS and required an expert to enhance it.

Things to Enhance:
- Read colour from the point of touch / select of the capture / selected imaged , accurately
- Read Image failed in library for iOS / use a better library , but need also work for android


**Required to own Android with latest android version and iPhone with latest iOS14 .