I would think it would be a feature matrix - you know features down the left column and the different apps across the top. It would be really useful to have a review of each app that explains how they might improve a particular feature, or how it is lack support for a feature in the list but how you can do it another way or something.
This leads to product design where the goal is to have as many features as possible and not give a shit about user experience. It's not objective because you've subjectively assumed that feature count is the most important factor.