I try to explain the diffrences between the Iris models in this article.
They are separated, because of the different size and code.
For example Iris micro is command line and really small in size.
Iris mini is about 10 MB and only tray icon.
Iris contains lots and lots of code and is something like 100MB.
It may be a little confusing at the beginning, but this is the best way everyone to be happy.
Always the first question people ask me is which one to download and I always tell them Iris mini, because you just need to double click it and it will work automatically.
It’s also free for lifetime. Basically Iris mini will automatically decrease blue light and brightness at night. Use this for a week or two to feel the difference.