Early (pre 2.0) versions of Indigo were available for free. Indigo became a commercial product in February 2009.
We still offer a free version of the current version of Indigo - but it has these limitations:
* Maximum resolution of 0.7 Megapixels – e.g. 1000 pixels by 700 pixels.
* Indigo logo in the bottom right of the image
* May not be used for commercial work.
* No support (beyond that given in our forums)
You can download the trial and get a feel for Indigo, then purchase a licence from our store and unlock Indigo instantly.