FollowerSearch offers Free Trial, but Twitonomy does not.
FollowerSearch is designed for Large Enterprises, Medium Business and Small Business.
Twitonomy is designed for Individuals, Medium Business and Small Business.
The starting price of FollowerSearch begins at $14.50/Month when Billed Yearly, while pricing details for Twitonomy are unavailable.
Some top alternatives to FollowerSearch includes BuzzSumo, Twitter Analytics, NetBase, Followerwonk, Twitonomy, Tweet Archivist, SocialTracker, Planable, SocialStats, SocialBee, Tweetastic and Tweepsmap.
Some top alternatives to Twitonomy includes and undefined.