Online Polish Course
Transparent Polish is the fruit of a longstanding language education house focusing on the modern digital world of learning. It's not free but it's also not expensive, and is well worth the investment.
Interactive, Social, Cultural and Mobile Polish Learning
Where Transparent excels is in the details. Their newest Polish course offers a one-stop learning flow which - as you advance and select your learning media - tuned to your unique interests and needs. Built on sound learning methodology honed from real-world experience, Transparent Polish is available on mobile devices including iPhone, iPad, iPod Touch and Android.
The Transparent experience is elegant, interactive, social, culture-rich and available on-the-go, anytime you have a moment to invest in learning Polish.
Polish Software Tools for all Learning Levels
For the first-time Polish learner, Transparent offers a path to follow: The Essentials Course accompanied by the Alphabet Explorer and Grammar Reference. From there, learners solidify this foundation with the unique Byki™ vocablary building and pronunciation training software (more below), which Transparent has been tuning and tweaking for something like a decade. As they progress, learners can explore and use more content using the Language Reference tool, all the while being consistently refreshed on what has already been studied.
In Summary
No, it is not free. Yes, it has what you need to learn Polish and there are scant few products for the eager Polish learner - you're in luck, just try a lesson for free.