Alternativ till Yoga&Me för Kindle Fire med gratis licens

• Kindle Fire
  Alla plattformar Windows Mac Linux Android iPhone Windows Phone Blackberry iPad Android Tablet Kindle Fire Web Self-Hosted Software as a Service (SaaS) jQuery Windows Mobile Wordpress Facebook Stripe PayPal
• Gratis licens
  Eventuell licens Gratis licens Open Source-licens Kommersiell licens