Iris mini is free.
Iris is free.
Iris micro is free.
Iris has Pro version for $10 with more options and advanced settings.
This is lifetime license for 1 version of Iris. If you download new version you need new license.
Iris micro has only free version at the momment.
You can buy Iris mini Pro and Iris Pro from the Buy page
There are also some free versions for Android and some paid ones. You can find all Android versions here:
Iris works on Windows, Mac, Linux, Android at the momment.
I am working on versions for iPad, iPhone and plugins for browsers.
At the momment there is really crappy implementation for Chrome OS, but at least it’s something. You can find the Chrome extension here:
Every license is for 1 machine. If you have multiple machines you need to buy activation code for every PC. Every licence is lifelong for this PC. Every license is for 1 version of Iris or Iris mini.