Instagrab.App lets you get Instagram stories on your phone in a snap with just three easy steps:

1. Start by finding the Instagram story you want through the Instagram app. Tap the share button and select 'Copy Link' from the list.
2. Then, go to the website: https://instagrab.app/instagram-story-downloader/ . Here, you'll stick the link you copied earlier into the provided box and press the 'Download' button.
3. At last, the Instagram story is set for you to download in the quality you like best.