Free Tools

Instagram doesn’t have a straight download link for any pictures or videos shared on their app just like YouTube but there’s a fast and easy way on downloading them straight to your device.
Using Instwogram
Instwogram is like a replica to the Instagram app,the only difference is that you can download videos and photos at just a click,lol. Well,you might not like the app because it’s an outdated version of Instagram but youll still enjoy it though.

You can download Instwogram HERE
Using Savedeo
Savedeo is a website with which you can download YouTube, DailyMotion, Vimeo, Instagram videos by just pasting the url of the video on their website and a download option will be available quickly. To download Instagram videos or photos,just press the ‘three dotted icon’ beside the video or photo and select Copy Share Url. Now go to Savedeo.com and paste the copied url in the download box then click download.

Using third party apps
There are several third party application on the playstore that are not in anyway affiliated with Instagram. Just go the playstore and search ‘Instagram Downloader’ ,just pick anyone that suits and see how they work. I’m pretty sure most of them work the same way savedeo.com is used.