With a great selection of levels from the full game, including the whole Invert World section, there's plenty plenty gameplay for people who are new to Invertical, or played the other free versions previously made available.
This version also includes gamepad support so you can plug an Xbox controller into your PC to get the benefits of better controls offered by a gamepad.
There's no adverts, IAP or hidden costs but if you enjoy the game, why not try out the full version?