With a free ManageFlitter account you can unfollow up to 100 of your Twitter account followers per day.
You can remove these limits by upgrading to ManageFlitter Pro.
Alternatively if you prefer not to upgrade to Pro you can increase your daily limit up to 2000 unfollows per day through the Bonus Unfollow system.
Options to increase your unfollow limit include:
• Follow the @ManageFlitter Twitter account: +200 daily unfollows
• Tweet about ManageFlitter: Bonus: +200 daily unfollows
• Sign-up for the ManageFlitter newsletter: +300 daily unfollows
• Invite your friends to try ManageFlitter via email, Twitter or Facebook: +1200 daily unfollows (+200 per referral)
(Please note that an invitation only unlocks additional unfollows if the user hasn't used ManageFlitter...