[R00]

Not sure where on the earth you are, but keep in mind terrain and it's affect on signal. Any time I use a phone app that is cell tower and or cell phone dependent, I tend to loose signal / real time tracking randomly while in heavily wooded areas. My handheld GPS is always on point.

Most apps these days (even Google maps) allow you to download maps to your phone for offline use. The GPS in your cellphone will work without a cell signal.

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