I wanted to use this app to track my child’s reading activity this Summer. 9/10 of the books we searched for (including famous titles such as Harry Potter) could not be found. Not sure who wrote this app, but it might have made more sense to use an API or other method to tie into ISBN listings. This obviously uses its own outdated, limited set of books. Sure it’s free, but so is a piece of paper and a pencil, which would actually be more useful than this silly app.