Sweep helps hikers navigate with maps maintained by parks and local partners. The app displays your live GPS position on park maps, lets you browse national, state, county, and city parks, and records hikes for later review. Its App Store page describes offline maps that can be stored on the phone, along with tools for managing downloaded maps and reporting map issues. Sweep is free to download and is designed for iPhone; the current U.S. listing does not show in-app purchases. It requires iOS 14 or later. Map coverage varies by park, and GPS tools should supplement checking current trail closures, weather, and official park guidance.
