The paid version, Rhythm Cat HD (currently $4.99), includes six stages, each with ten levels.
If you want to use this as a lab for your students, you will need the full-paid version.
This download includes two pages covering all six stages and ten levels.
If you use this app as part of an in-studio music lab assignment, this sheet allows students to track their individual progress in the app since they cannot “log in” to track individual progress.
For more detailed information and a closer preview, see this post:
Favorite iPad Apps for Music Lab Time
If you would like to write a testimonial of how this product has been useful for you and your students, click here.