So many issues! :(

I never review apps but felt compelled to review anatomy atlas. When my iPad locks (mini 4) and I re-open the app, the screen is distorted and the app freezes. I have to restart the app and start all over again! The Pencil feature doesnt even work! When I select + Zoom the app does not respond. What is the purpose of this feature? The skin layer is so cartoon-style and when I try to change to a female model by tapping + / - it just sticks with the male model. Frustrating to say the least! Very poorly designed app. Its unusable in this state. I dont know how it has all 5 star reviews. "Awesome app", "Great app". Sounds fishy to me.

DJD.Dr. about Human Anatomy Atlas – 3D Anatomical Model of the Human Body