Film emulsion rendering software is not a new concept, but each offering has their own strengths and weaknesses. Alien Skin has been in this industry for years, and recently updated their flagship software, Exposure, to the 7th edition. Exposure 7 can be used as a standalone software or in conjunction with Adobe Lightroom and Photoshop. Alien Skin, like VSCO, focuses more on an artistic way of doing things and also focuses on just delivering the best images that it can in a simplified way–which is on the other side of the spectrum of DxO. DxO uses loads and loads of science and lab tests.
For the enthusiast, Exposure 7 may be a great option to get the best from your images quickly.