This is the most amazing app. I've owned it for years. Having written Thorsten with questions, comments and suggestions I've always received prompt responses and even questions. He supported my user group with an interview for our paper. Updates are frequent and very inclusive of new features and bug freatures. I'm knocking off one star because I'd like the to see the interface cleaned up just a bit: especially the preferences. Had this been a free update 5 stars. Have already paid the fee and will do so again the future. Great app!