Is this a violation tool?

It is a tool to collect information from Twitter. No problem.

I am concerned about communication charges

Information is always sent during search. Those who use it on mobile phones should be careful about that.

Is personal information collected?

I used only Google Analytics.

I found a bug / I have suggestions / advice / I want to put in a claim

Please contact @narako_ff14

v2.1: It now restarts once an hour. If it is stopped, restart at 0 minutes every hour, so please wait. Or contact @narako_ff14

v2.0: Renewal!