1. You can use Toolzu Instagram Downloader on a computer, phone, or tablet to save photos.
2. Try Downloader for Instagram if you have an Android.
3. Reposter is an app for iPhone/iPad that lets you download photos.
4. Use the “Inspect” feature in Chrome to save Instagram photos to your computer.
For more tips, including how to save a picture from Instagram on iPhone, read on!
Source: Wiki How