Delivering the next generation ebooks and calculator libraries.

Latest Releases

Army Ranger Fitness

Army Ranger Fitness

Train like an Army Ranger using the RAW (Ranger Athlete Warrior) training program created specifically for Ranger physical training.

Navigation Rules Pro

Navigation Rules Pro

Navigation Rules Pro contains a complete copy of the International Regulations for Preventing Collisions at Sea, 1972 (COLREGS) plus critical boating reference material.

Aircraft Weight and Balance

Aircraft Weight and Balance

Reference handbook and calculators for learning principles of aircraft weight and balance.

Popular Apps

Navy SEAL Physical Fitness Guide

Navy SEAL Physical Fitness Guide

Navy SEALs require an extraordinarily high level of total body physical fitness. This guide shares the Navy SEAL's secrets of physical fitness training.

Home Builder Pro Calcs

Home Builder Pro Calcs

With over 200 DIY calculations and unit conversions, Home Builder Pro Calcs lets you quickly and easily solve a variety of home construction calculations from your iPhone or iPad.

Army Survival

Army Survival

The U.S. Army knows how to train their personnel to survive. Their field manual is the most authoritative guide on survival.

Boater's Pocket Reference

Boater's Pocket Reference

1,800 page of boating information on your iPhone or iPod Touch! The Boater’s Pocket Reference caters to all levels of boating expertise with 1,800 pages of illustrations, photos, charts and graphs. Boater’s Pocket Reference is a popular and useful printed book and the app is even better.

Pilot Handbook

Pilot Handbook

The FAA's Pilot’s Handbook of Aeronautical Knowledge. This app provides knowledge that is essential for pilots, student pilots, and instructors.

I.D. Wood

I.D. Wood

I.D. Wood is your Pocket Guide to Woods from around the world with full screen samples and detailed information for over 50 different woods.