Level It $$$
This is a commercially produced app which can be downloaded on to either Apple or Android phones. Scan a book's ISBN to view the Lexile, Guided Reading,
grade level, or DRA levels for the book. There is a fee for downloading. $$$
Leveled Books Database
A-Z Teacher Stuff features Guided Reading and Reading Recovery levels for more than 9,000 titles, plus Accelerated Reader levels for more than 11,000 titles.
Lexile Find A Book
Free database searchable by author, title, keyword or ISBN.
This is another commercially produced app which can be downloaded on to either Apple or Android phones. Supports Lexile®, DRA (Developmental Reading Assessment®), and Guided Reading leveling systems. Scan a book's ISBN and see its level or search for a book by title, author, or level. The database focuses on grades K through 8. There is a fee for downloading. $$$