It is a known limitation that html5 videos do not start on iOS and Android 4+
On the other hand this solution has another benefit – it allows you to play video inline on iPhone 4+ (ordinary html5 videos go full screen) which means you can overlay it with something like an ad or subtitles and the user can still interact with your webpage.
You can find out more about our API and get your test video encoded for free on this page.
