At the moment, we have our own caching layer which is a bit entangled in our data layer. We are making some changes to better encapsulate image caching now, but as we do, we are also evaluating these libraries which are general purpose and used throughout the iOS community.

This website gives a great rundown of the available libraries and why you would choose to incorporate one:

As the title suggests we are currently looking most closely at SDWebImage and FastImageCache. 

If you have any insights or feedback please feel free to post here.

Thanks!

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