From reduced stress to better sleep and everything between, many people have discovered the benefits of yoga. Fortunately,  a number of great apps are available to make it more convenient and less costly than ever. The Yoga.com app is meant for everyone, from those just starting out to yoga gurus. The app helps users understand exercises better with HD video and 3D muscle images for each pose. It offers more than 300 poses and breathing exercises along with 45 predefined yoga programs. Yoga.com costs $3.99 and is available for iOS and Android. The Daily Yoga app offers more than 400 poses with videos and more than 50 yoga sessions and…