If you are looking for an alternative to AutoCAD LT you have a lot of different software programs to choose from. Two of the best are Bricscad and DoubleCAD XT. Version 2 of DoubleCAD XT has recently been released and I downloaded a copy to check it out.
I’ll skip ahead to my opinion.
If you need to work in 3D you probably don’t want to use AutoCAD LT or either of these programs.
If you already know AutoCAD, Bricscad is the most like it in appearance and functions, so it won’t take you long to learn how to use it. I think it would be a good replacement, or additional seat. It cost $695.00 for one seat, but you get a break on price if you need 10 or more. Bricscad was created with only one thing in mind and that was to be as much like AutoCAD LT as possible. Bricscad also runs AutoLisp programs. You may know, AutoLisp is a programing language that you can use to customize the full version of AutoCAD. There are several AutoLisp programs that I have written and some from some others that I find really useful. AutoCAD LT does not support AutoLisp, but Briscad does.
DoubleCAD XT is free. That can’t be stressed too much. You can get an AutoCAD LT work-alike with most of the functionality of AutoCAD LT for free. If you already know AutoCAD LT, it will take longer to learn than Briscad, because it works a little differently than AutoCAD LT. They have attempted to make it work quite a bit like AutoCAD but the differences will be a bit of a stumbling block. However, it is entirely possible that you will prefer the way it works. This is a program that was written to be the best cad program that it could be while making sure that it had all of the AutoCAD LT functionality. It has several features and functions that are missing from AutoCAD LT. If you do not already know how to use AutoCAD LT, this will be an excellent program to start with. Like AutoCAD LT, it doesn’t support AutoLisp.
If you are wanting an inexpensive alternative to AutoCAD LT and you want to use it for architectural drawings, you may want to step up to DoubleCAD XT Pro. For $695.00 you get a lot of Architectural Desktop (ADT) compatible tools and some additional features that you don’t get with the free version. This version also supports custom commands written with their software development pack (sold separately), but it also doesn’t support AutoLisp.
The prices above were listed on the companies websites on February 24, 2010.