The Starfall app is designed by the Starfall Education Foundation, which seeks to “create free and low-cost experiences whereby children can successfully learn through exploration” (according to their app page). This program in particular, which requires an internet connection to run, is focused on a variety of core skills mostly related to reading and math. It is set up in a way that young children can easily explore, with a large home screen featuring over a dozen categories which can be clicked on and looked into with a variety of options to select. The free version includes access to only a few subcategories of each main category. To unlock all content, a Starfall Membership is required. Instructions to do this are clearly outlined, with a year-long home membership costing $35; other year-long institutional memberships are also listed.
BYU ScholarsArchive Citation
Children's Book and Media Review: Vol. 37
, Article 42.
Available at: http://scholarsarchive.byu.edu/cbmr/vol37/iss12/42