Not exactly. And you are not doing it twice.
1) You start with the sketch. Then label the rooms. Then hit the rooms and up pops the place to take picture for that room and you take any notes necessary. You go through that entire process. The app is set up very intuitively. No going back to the office to search for photos or recopying notes. All the room count, levels, etc are already marked before you go back to the office.
2) When in the field you simply go through section by section in the mobile app and fill in the main data. I've been doing this for 20 years with just old forms. And I can tell you it ultimately saves time. And by the way the app won't let you forget things. If you forget something there is a red exclamation mark that comes up. If you are using paper and pencil you won't know that until you get back to the office.
3) Then when you get back to the office you sync everything into the program and no tedious work going through the form on the desktop. It is far more intuitive. The mobile app is geared for how an appraiser does an inspection. The desktop is not.
Yes, you may spend more time at the property. But you won't have to re-sketch the house, search for photos, and re enter data you have put in the app. Plus, if you put in comparable sales ahead of time, you can use the mapping feature to go take photos of the comps if necessary. Also, when I do properties and I have to take a lot of notes, I just talk into my phone and it takes down the notes.
Until you actually try it, it is hard to explain the experience.
And by the way the idea that you stare at a screen instead of look at the house is bogus. It actually make it easier because the app does all the pull downs for you. I could say the same thing about the clipboard...not looking at the house but writing things down.