Map 47 is an essential tool for group hikes or military operations in areas where the internet is unavailable or must be disabled. This isn’t just another data-gathering app—it's an independent, autonomous offline map system.

How to use it: Have your entire group download the Map 47 app, download the required country or region for offline use, and then send each other SMS messages (with clickable links) for any location. Tap on the SMS, and the app will open the shared location on the map.