I'm currently developing an application that makes use of the WolframAlpha API. As I'm mainly using the math capabilities of WolframAlpha, I'm downloading the images which the API provides. However I realized that these images' resolution was much worse compared to the images which the WolframAlpha iPhone App provides. On an iPhone 6 the image from the WolframAlpha App had double the resolution of the image that the API provides. I wondered if it is possible to obtain an image with a resolution which corresponds to the resolution of the device or has at least twice the resolution (because it's looking extremely pixelated compared to regular text).

Thanks for your response in advance.