A little disappointing – Anatomy & Physiology Review

I am a physical therapist and downloaded this app so I could use it for educating patients, particularly related to trigger point dry needling. The very first muscle I've tried to search for is the Rectus Capitis Posterior Minor, and it's not included. The other suboccipital muscles are also not included, disappointingly. For the cost of the app, these muscles should be included.
Review by Hooms08 on Anatomy & Physiology.