CoffeeStrap

A promising service at first, but completely useless at closer look. All they do is assign inexperienced volunteer as a language teacher which will spend your time freely chatting with no training at all. They charge quite a decent money for their "service", silently charging your card monthly with no obvious way to cancel the service. I applied to evaluation month, they silently signed me to recurring payment and withdrew significant amount of money. They refused to return the money, though I haven't used their site since the first month. Avoid using this service: it is expensive, useless and sly.