You're right that it doesn't break the bank. It just feels overpriced. I am not underestimating the work/effort that goes into creating it, I am very aware of

You're right that it doesn't break the bank. It just feels overpriced. I am not underestimating the work/effort that goes into creating it, I am very aware of the effort required. My primary motivation for using it in the first place was because I was too busy to write something like this myself, and for that the price is fair - my time is worth more right now. But I don't think a system which sends out email reminders and logs daily text updates is $600 per year software, sorry. The author is clearly perfectly entitled to keep the price at whatever level he likes, and I wish him all the luck in his endeavour.