Kodiak Performance

Kodiak Performance computes all the useful performance numbers for flight planning for Daher Kodiak aircraft. It includes calculations for takeoff, landing, climb, cruise, descent, instrument procedures as well as emergencies. It has a flexible Weight and Balance calculator that allows custom seating and cabin cargo arrangements. The W&B calculator also allows storing common crew and passenger weights in a database for quick reuse. The app also includes an interactive hold calculator, a risk analysis tool, and an emergency glide distance calculator that handles head and tailwinds.
Kodiak Performance is also available on other mobile devices and as a WebApp (an App that runs in a browser) that runs on a variety of platforms (PC, Mac, tablets, phones). The cloud sync feature allows flight planning profiles entered on any device to be synchronized with your other devices when connected to the Internet.
Kodiak Performance is a free, open-source development effort and has Apps and WebApps for other aircraft. See http://pohperformance.com for complete details.