1. Download SaveAgram app on your iPhone.
2. On Instagram choose the photo you would like to save to your camera roll. Select the 3 dots ... above the above the photo.
3. Select share option.
4. Choose copy link. Once the link is copied you will get a notification in green telling you the link has been copied.
5. Open SaveAgram app. Paste the link into the link bar then click save.
6. Give access to your camera roll. That is it. Now repeat the steps to download more photos from your Instagram. Enjoy.