You can track multiple conversions through Go2mobi.
To add multiple conversions include '&pbnum=#' in your standard postback as described here:
# indicates the conversion number you'd like to record.
&pbnum=1 is the default and is not required. This corresponds to "Convs" in the DSP reporting system.
&pbnum=2 to &pbnum=10 correspond to the MORE columns "Convs 2" through "Convs 10" in the DSP reporting system.
To record a conversion in Convs 7 associated with clickid 1234567890, you would send the postback http://pb.g2trk.com/pb/?api_key=abc123456&pbnum=7&clickid=1234567890