Automatically unfollow users that don't follow you back on Instagram! Runs from the command line so you can set it up as a cron job.
Depends on InstagramAPI module, which you can find out about here.
Just run the unfollow.py script from your terminal with your username and password. Optional arguments -d and -n can configure the maximum random delay between follows (in seconds) and the maximum number of unfollows to make in one pass.
Example:
python unfollow.py 'your_username' 'your_password' -n 50 -d 10