instamly

About

Track who they followed and unfollowed today. Watch their stories anonymously. No password required.

You can see: 
accounts your friends or your own account have 
recently followed, 
new followers they've gained,
they've unfollowed
or followers they've lost. 

You can also watch and download stories without the "seen" mark.

How to use:
1) Go to the profile of the person you want to track.
2) Click Save and wait until it's complete.
3) If you only save once, you can view non-mutuals follows. If you save twice, you can track follow and follower changes.
4) If the person has posted a story, you can view anonymously it in the stories section.
5) Saved accounts are located in the profiles tab.