As far as I am aware Ryanair have never offered wifi on flights, yet alone 'free'! It is ryanair we are talking about here yes? Why would Ryanair offer a free service? It's just not their business model...
They do have a small number of aircraft equipt with 'onAir' mobile phone usuage technology where you are able to make voice calls and texts only when permitted to do so. Though even this has had a set back as a new provider was to be found, not sure if they have sorted that now.