From the FamilySearch.org "Partner News for February, 2016" by Gordon Clarke, we learn the following:
FamilySearch works with a variety of partners to help provide you with as many ways as possible to find, add, and share about your family members. FamilySearch is pleased to announce that Little Family Tree is now Read compatible and GenerationStory, Kindex, HP Scan, and StoryWorth are now Read and Update compatible with FamilySearch. “Compatible” means the product programmatically interfaces with FamilySearch.org and has features that conform to our strict standards of quality.I have been intending to write about each of these programs and will very likely do so in the near future. But the blog post gives a good introduction with a link to each of these relatively new programs.
One app you may want to focus on if you have an HP scanner is the HP Scan app. The instructions in the App Gallery indicate that you have to obtain an account with HP Connected but it is another free account.