Google has customized its Google Play store to call out apps specifically designed for tablets.
After announcing the plan last month, Google Play now features a new category in Google Play called "Designed for tablets." If you're using a tablet, you will see this as your default view, though you can still access non-tablet apps from your tablet.
Google had earlier released a set of design criteria to help Android developers ensure their apps were tablet-friendly. Apps and games that do not meet Google's “Designed for tablets” criteria are marked as “Designed for phones” for users browsing the Play Store on their tablets.