I'm learning it slowly. You cannot merge files in the app on ios. I need that. There are also a few hic-ups. Sometimes after a signature the screen gets disoriented and you have to go back to documents list and reopen. Sometimes after reopening some of the modifications are gone and you must re-enter. Some of these issues may be due to not being connected to internet. Overall it has helped me go paperless and I'm getting faster at filling out my documents using it. A few tweeks and it will be awesome.

It made filling out forms extremely easy and PDFfiller takes cakes care of faxing and emailing the documents. Well worth the price to avoid the stress!

Ease of filling the forms. There is one change if you can make will be great... in date of birth column, once you click on it, you have to put the MM/DD/YYYY. If you can allow to override that and just put the year, that will be of help. In my case where my father was born in 1920 and his date of MM/DD is not known, I'm forced to fill it with incorrect information.

The "Draw" tool needs to have an option to match the color on the picture or PDF page so when you're drawing you don't mess up your picture so bad!