AppAnnex LLC releases Speed Tracker. GPS Speedometer and Trip Computer 5.3, an update to its popular iOS app. Speed Tracker combines a GPS speedometer, Trip Log and Trip computer into one unique application. The app automatically records your location, speed, time, distance and much more. Version 5.2 now supports Apple Watch. Speed Tracker is on sale for 75% off the regular price. The promotional price will be in effect until May 31th, 2016. Speed Tracker is $0.99 and can be downloaded from iTunes.