Mark Descalzo

A perfect app for youth league lacrosse. Tired of kitchen timers and stop watches for game time and penalties? This app allows you to do both simply e …

PiTimer is a clean and simple visual timer. It is useful for any situation where you want a visual representation of time remaining. This is especiall …

A simple, easy to use external ballistics calculator for the iOS. It accepts inputs of bullet weight, ballistic coefficient, muzzle velocity, sight he …

I wrote 'Rithmetic for my daughter to practice her basics and she loves it! 'Rithmetic is a simple math quiz application intended for young children t …

BulletDrop is a simple external ballistics calculator for iOS. It accepts inputs of bullet weight, ballistic coefficient, muzzle velocity, sight heigh …