I'm looking for something SIMILAR to Citrix but free/relatively inexpensive. I have a guy that runs a POS/Inventory app for his small business and he wants to run it at home for bookkeeping and at the shop for obvious reasons. Right now, he does work at home, saves, copies the DB to a USB drive, takes it to work, copies it over, opens it there. The app doesn't allow for custom locations of the DB either, so he can't just leave it on the USB drive. Clearly you can see a place for corruption, or overwriting a newer file if you're not careful, especially with 3 different people (himself, secretary, and his wife) all using it frequently.
I'd love to be able to "share" the application off of the workstation at the shop for him to access at home or from anywhere really, similar to Citrix. The issue is the cost of Citrix to use 1 program between 3 people all within a 5 mile radius is unjustifiable.
QNextMyPC - Free, haven't tested yet
Hamachi + RDP - Cheap ($20/year), doable but a little bit convoluted
Straight RDP via DynDNS domain - Free, same drawbacks as Hamachi + RDP
Theres GOTTA be something similar out there for cheap/free. He's not unwilling to spend money, its just a matter of it not being ridiculous money. I'd guess up to $100 one time or $5 a month or so.
Having twins has dramatically reduced the time I have to nerd out.