There are not In-App purchases or Subscriptions in this app! 
Pay once and it is yours forever, including future updates.
iColorama S is a creativity app for people interesting in enhancing their photos and converting them into amazing pieces of art.
Just check the tag #icolorama at Instagram with around 290 000+ art images created using this app!
There are too many effects to be listed here. The effects are from simple image adjustments to complicated transformations.
Images can also be repainted with many different brushes and you can import and use directly your own Photoshop brushes!

FB Group: http://facebook.com/groups/icolorama
Join our FB group if you are interested in sharing your art! We have more than 5000 members!
There are also some fantastic tutorials written by Jerry Jobe here:
http://enthusiasmnoted.wordpress.com/?s=iColorama