Nope, there is no code encryption - all source code is provided in its original form.
We provide it for your convenience, so you can study it, change it to fit your needs etc, but it's not available under any traditional open source license. License is proprietary so code can't be forked, published etc - please check activeCollab License Agreement for details.
The paid user can get source code, is there any code encrypted?
And can I modify the code according to my needs?
Thanks
Mike