Hard to use, no help or support – Knitting Chart Review

I have not been able to really use this app. The entry is hard because the symbols do not “stick” on my iPad. I bought a stylus and it doesn’t help at all. There is no erase function without going from the “used” symbols to “all.” The app is not intuitive. There is no how-to with the app and there appears to be no support. It has some OK points, but I would not buy it again.
Review by Putsio on Knitting Chart.