Colloquy is free software. There is absolutely no obligation to pay any money to use or redistribute Colloquy.
Why Donate to Colloquy?
I don't charge money for Colloquy, but it does cost money to produce, support, and distribute it.
If you use Colloquy regularly, you may want to make a periodic donation. It will help me continue to develop and support the software and features that you use. I know I feel good about myself when I make voluntary donations for the free software and services that I use, so I naturally think you will too.
A donation would not only demonstrate your appreciation of this software, but also help to advance development in the future.
How to Donate
The easiest way to donate is to through PayPal—it's fast, free and secure. PayPal accepts all major credit cards and electronic checks.
There are many ways to donate to Colloquy. Programmers are always welcome to contribute code, designers can submit new Styles or Emoticons. Donations of equipment, software and services are also very much appreciated.