Is that all? – Spanish Reading Comprehension Level 2 Review

This is a good app for my first graders in a Spanish immersion program. Ran well, not buggy. Substantively reinforcing what they are doing in school. But $5 for 15 problems (each with 3 questions)? It took them 10 minutes to blow through. Am I missing another level?
Review by Medshark on Spanish Reading Comprehension Level 2.