Sailboat GPS Track Data Logger

This app is plotting me .75-1 mile away from my actual position, and other apps are plotting me correctly. This app wants you to pay for accuracy better than 6 meters - $7.99!!!!! It’s not anywhere close to 6 meters it advertises, so no way I’m paying for “better” gps plotting. The app is also unstable on my fully up to date iPhone 11 and keeps crashing. Not ready for prime time. Do not recommend purchasing.

app provides real time display of speed, course, altitude and location, and records tracks, but it lacks a "playback" option to display recorded speed and course. It really needs a graphing feature to display speed and course as a function of time. This would make it much easier to determine where the best wind was on the course, what course provided the best speed overall and best speed made good, and where mistakes were made. It also ought to export this data as a .csv file for data analysis. That is the information I really want to see. The current version of this app allows users to select any point on their track and view their speed and course at that particular point, but provides no means of reviewing the data as a whole. This is very disappointing, and I hope that the functionality is expanded on in the way I have described. It would make the app much more valuable and worthwhile to sailors looking to analyze their performance and improve their speed. Being able to review this information in a race could provide an edge.