Hey I know you didnt ask me but since I can answer this question I dont see why I shouldnt. Maybe it'll save you some time.
Only the 0.3.5 version is free. The 0.9.96 version must be paid for... for now. I believe the Dev has stated that once he has released Genex Love part 2 he will make part 1 free to play. He has not stated exactly when that will be though.
I would not be surprised if RebootLove waited a little while after Part 2 was released before making part 1 free.