When we were in another region, we used an architect who used Archicad and we loved it. Now we're in Puerto Rico and haven't been able to find an architect who uses Archicad who can design condo buildings that are 3 to 7 stories high. So we really want to find out if there are other CAD apps that have most of all of these features that we loved in Archicad:
A) It is "walkable" 3D meaning you can move the mouse to walk around the building and through the building and view the insides and outsides from every angle and elevation.
The architect can email us a file and we can do the 3D walk-through on our Mac. We often travel for work, so we normally can't go to the architect's office.
C) At any time in the process, the architect can convert the 2D plans to 3D in a few seconds. We liked that when we could be there in person, he could make a change and within seconds let us see if it improved the look or not. Also, because he didn't need to spend a half hour converting it to 3D, it meant no cost for us to see plans in 3D any day we wanted. Even if an app can't do it in seconds, being able to do it in less than a half hour would save money compared to an app that requires more time to convert to 3D.
If you know of an app that has a couple of the above, please let me know the name of the app and which features it has. E.g.: "FakeApp has A and B, and can do C with about 30-60 minutes of effort." Of course more detail is welcome, but if you're in a rush, simply name and which of the features it has is good. We can research it more and see if there are architects here who use it and do our kind of project. Thanks.