Gruntify provides an option for photos taken in the app to be saved to the devices photo roll.
Go-to Mobile app settings
Enable ‘Save Photos to Gallery’ .
Create a Request and take a photo in Media tab.
Image gets saved on the device (camera roll) as soon as user clicks the photo.
We also have a Grunt available in Enterprise plan that saves the image in photo roll with banner that contains Date, Location and Linear Reference information.