Tired of counting rows? Need to track your position in the field while spraying? Farm Sprayer GPS is a simple tool that allows you to set the width of your implement and see where you have sprayed or spread fertilizer using the the GPS built into your phone or tablet or with an external GPS antenna. Use it for tillage, spraying, planting, or anything else. Farm Sprayer GPS highlights the ground you have covered, shows overlap, and provides lightbar style navigation to keep you parallel to an A-B line. The maps can be saved to the device so that you do not need data in the field. !!Use with caution!! Phone and Tablet GPS providers can be off by meters. Not all devices have GPS antennas built in. Please visit our website for help finding an appropriate external antenna to get the most out of the app. Continued use of GPS running in the background can dramatically decrease battery life.