I hadn't heard of Upad before. The screenshots look nice, especially if it really does work well for handwriting. Just yesterday I tried doing some mathematical note-taking in another app (already forget which one) and it was pretty bad.
Sadly, the support links leave me with little confidence in the product. The "PockeySoft Web Site" link is actually a youtube video, and "UPAD Support" takes me to a 404 (http://www.pockeysoft.com/upad). If I remove the path on that URL, most of the images on the resulting site are broken. If their site is that broken, and the app hasn't been updated in 11 months, it sure gives the impression that the app has been abandoned.
Perhaps it has — but for the moment it works great, and for the amount of money that you have to pay for it, who cares if it will work a year from now?
Sadly, the support links leave me with little confidence in the product. The "PockeySoft Web Site" link is actually a youtube video, and "UPAD Support" takes me to a 404 (http://www.pockeysoft.com/upad). If I remove the path on that URL, most of the images on the resulting site are broken. If their site is that broken, and the app hasn't been updated in 11 months, it sure gives the impression that the app has been abandoned.