Not at all current accurate location without sat tracking which is not free , so kind of useless for me unless your tracking near the coast . Tracking a vessel for a few days and it shows it is same spot yet the report says it's moving at 17 knots. On the positive side after trying many other similar apps , this one was the only one that gave me a fairly accurate ETA. Correction now it finds the vessel from a two week old position . Either the ship is sending wrong data or these apps are useles