Well Priced Add-on packs, works like a charm - some constructive criticism

Simple, easy to use, and a great way to take Life and Death problems with you. The add-on packs are reasonably priced, and the Daily problem sets are a definite plus.
Im relatively new to Go, so it would be great if the problems were more informative instead of all being simply geared towards your best play - it would be nice to have the option to learn WHY it is your best play. However, I understand that this isnt a problem book, and is more of a form memorization tool, so I understand the reasons against instruction. I bet the creators could make a good problem book, though!
Also, on the Progress page the number to the right of your ranking in parentheses seems arbitrary, and isnt explained. It could very well be part of some scale that I dont know about, in which case disregard, but it is largely unexplained, and does not appear in the rest of the app.
Great app, though. Best one Ive found to be sure. (Most others barely work on the present iOS) Worth the price of the packs Ive bought, and the ones I plan on buying in the future.

OhNo789 about Tsumego Pro (Go problems)