A permission is required to use the phone's camera hardware. It can not be used for any other purpose. It is necessary for the basic function of the application.
It is a necessary permission for recording voices during video recording. It can not be used for any other purpose.
WRITE EXTERNAL STORAGE:
The permission to writing data to external memory.
All personal data in question can not be shared with third parties and companies. It is not stored in any way. It is not used for purposes other than application functions.