Alternativ till Viuly för PlayBook med gratis licens

• PlayBook
  Alla plattformar Windows Mac Chrome OS Android iPhone Windows Phone Blackberry Blackberry 10 Apple Watch Android Wear iPad Android Tablet Kindle Fire Windows S PlayBook Web Software as a Service (SaaS) Firefox Fire TV Chromecast Roku Windows Mobile Apple TV Chrome
• Gratis licens
  Eventuell licens Gratis licens Open Source-licens Kommersiell licens