Mark Kahrl

This version is for older devices with Android with Android 4.1 or earlier.For newer devices use 'Range Card Pro' https://play.google.com/stor …

Learn how to count cards and play Blackjack the 'KO' way. Simulates head to head play against the dealer with a shuffled and cut deck with 1 t …

A simple yet useful barometric altimeter that actually works. Meant only for devices that have a built in barometer or pressure sensor. Computes your …

Based in Bozeman, Montana, the Gallatin National Forest Avalanche Center (GNFAC) puts out daily avalanche advisories. Additionally, the GNFAC posts us …

A completely new and updated version of the beloved 'Range Card' App .Range finder and range card. A tactical data system for your phone. An e …