When an employee answers a photo question on most modern iOS and Android devices, the camera will open automatically.
However, one of our customers had a problem with this. Their employees were keeping a folder of "perfect" pictures on their back-office computers and uploading these photos instead of taking new ones with their phones.
To solve this, the customer banned OpsAnalitica on their back-office computers, forcing employees to use their mobile devices to take the pictures. While this solution might not work for every business, it's an option to consider if it fits your company's needs.