There are a dizzying array of apps and streaming sites available for yoga: for the office, on a plane, in bed and just about anywhere else. There are apps for breathing exercises, yoga philosophy and anatomy for the yoga student. They cater to the curvy, the runner, the veteran, the child, the health-care provider and everyone else. Here are a few good options to explore:

Gaia : Gaia offers unlimited streaming of its yoga classes, with a large roster of teachers, including popular instructors like Rodney Yee and Patricia Walden . You can select classes based on duration, style, teacher, level and focus. This comprehensive site also has special series for beginners, travelers, athletes and weight loss. An annual plan membership costs about $8 per month.

YogaGlo : Like Gaia, YogaGlo offers a variety of yoga style and teachers — there are more than 3,500 classes offered, ranging from five minutes to two hours long. And like Gaia, classes on meditation and yoga philosophy are also offered. Yoga Glo is pricier, however, at $18 a month for unlimited streaming.

Yoga Today : With videos filmed outdoors against the beautiful backdrop of Jackson Hole, Wyo., Yoga Today offers a stunning online collection of yoga videos, some of them free, if you sign up for the site’s newsletter. Notable are the site’s short videos that break down one pose. For $10 a month, on an annual plan, you can have access to the full library of yoga classes.

Yoga Studio : This app is designed to provide you the optimal yoga experience on your phone. You don’t need access to the internet at all time because you download the classes and they keep the download sizes small. The site has over 60 classes from 15 to 60 minutes long and a pose guide.