python3 main.py Twitter
# or
python3 main.py com.atebits.Tweetie2
# if you want to output file
python3 main.py Twitter > call.log
[+] Following thread 10499
[+] Following thread 11019
[+] Following thread 11523
[11523]: ulock_wake
[11523]: getuid
[11523]: chown
[11523]: getuid
[11523]: umount
[11523]: getdopt
[11523]: umount
[11523]: umount
[11523]: psynch_mutexdrop
[11523]: ulock_wake
[11523]: proc_info
[11523]: ulock_wake
[11523]: ulock_wake
[+] Following thread 17923
[11523]: workq_kernreturn
[11523]: proc_info
[11523]: chown
[11523]: mount
[11523]: vhangup
[11523]: kevent_qos
[11523]: vhangup
[11523]: lstat
[11523]: ptrace
[11523]: getpeername
[11523]: getpeername
[11523]: setlogin
[11523]: getpeername
[11523]: lseek
[11523]: getfsstat
[11523]: getfsstat
[11523]: Unknown(44)
[11523]: getpeername
[11523]: getfsstat
[11523]: getpeername
[11523]: getpeername
[11523]: chmod
[11523]: madvise
[11523]: chdir
[11523]: chdir
[11523]: chdir
[11523]: madvise
[11523]: madvise
[11523]: madvise
[11523]: madvise
[11523]: madvise
[11523]: madvise
[11523]: getpeername
[11523]: chown
[11523]: lstat
[11523]: getpeername
[11523]: vhangup
[11523]: vhangup
[11523]: chown
[11523]: getpeername
[11523]: mount
[11523]: vhangup
[11523]: kevent_qos
[11523]: vhangup
[11523]: getpeername
[11523]: getpeername
[11523]: vhangup
[11523]: vhangup
[11523]: vhangup
[11523]: umount
[11523]: vhangup
[11523]: vhangup
[11523]: vhangup
[11523]: umount
[11523]: vhangup
[11523]: vhangup
[11523]: vhangup
[11523]: umount
[11523]: getpeername
[11523]: getpeername
[11019]: __semwait_signal
[17923]: __semwait_signal
[+] Following thread 22275
[17923]: __semwait_signal
[17923]: __semwait_signal
[17923]: __semwait_signal
[17923]: __semwait_signal
[17923]: __semwait_signal
[22275]: stat
[22275]: stat
[22275]: stat
[22275]: stat
[22275]: stat
[22275]: stat
[22275]: stat
[22275]: stat
[22275]: stat
[22275]: stat
[22275]: stat
[22275]: open_nocancel
[17923]: __semwait_signal
[22275]: close_nocancel
[17923]: __semwait_signal
[17923]: __semwait_signal
[17923]: __semwait_signal