When I follow somebody I expect him to follow me back in a few days but some people don't do this. so I'm asking if there is a way to automatically unfollow those who don't follow me back for 3 days? "starting from the moment I followed them"
you need to get some apps which does this using api. just look in script section i saw similar requirment last time
It's simple. Just use tweet adder - the default setting is to unfollow anyone that does not follow you back in 3days. You can change it to any number of days you want It will also automatically search for users based on keywords and follow them (and then unfollow 3 days later if needed)
The beauty of Twitter is that you can follow, or be followed, without the approval of both parties. If you have an interest in following someone it shouldn't matter if they follow you back. Your approach sounds spammy however you will find apps around to manage the friend/defriend process.