If you enjoy hiking, skiing, mountain biking, or any other outdoor activity, you will definitely want to consider using the Altimeter app. It is a precise altitude-tracking device that can be used anywhere, anytime.

The app operates both online and offline, eliminating the need for an Internet connection. It uses GPS satellite triangulation, a barometric pressure sensor (if your device has one), and online network location services (Wi-Fi and others) to provide accurate data. You can use each sensor individually or all together.

Also, it includes a smart mini compass, full GPS coordinates (latitude and longitude), current location name and state, and measurement results are displayed on the map. You can even share your summit photos with your friends.

Best of all, all these features are free. If you want to remove the ads from the app, you can purchase "no ads".

The latest version of the app includes some great new features, such as the ability to copy and share geographic coordinates in Premium, a free 7-day Premium trial, and improved elevation calculation based on location.