I haven't used either project so I can't comment on the technical merits, but they have very different licenses. I would imagine that could be a primary decidin

I haven't used either project so I can't comment on the technical merits, but they have very different licenses. I would imagine that could be a primary deciding factor. Lamson is free so it would be easy to try it out. On the other hand, it's free under the GPL license. If it was LGPL it would be a clear cut case. Under the GPL I don't think you can use it without releasing your own source code. You probably want to find out for sure or inquire about other licensing options. Since you'd be dealing directly with the developer it may be negotiable. Boogie Tools isn't going to require you to release source code, but they've got the typical annoying licensing scheme with multiple versions and usage levels. It looks like they have separate licenses for different operating systems as well. I don't see anything about a trial license.