I have been using AppDelete for a while and loved it. But then I updated it to the newer version earlier today and they have added the 'donationware' stuff.
Well, as a rule, I don't pay for software. I don't know why, its just something I have never really been able to afford to do. And it isn't a 'donation' if they're making you 'donate' - thats called buying it after a trial - so I went elsewhere.
Thats when I found AppCleaner on Download.com. Its free and does an even better job than AppDelete - top marks.