Yep, all above are very costly but when your in the Professional Land Surveying world, you need what you need. GNSS Solutions was only about $1K when we bought it and I have the latest version, but it’s not being sold anymore. It also has a couple of bugs that you have to be aware of. CGO2 sells CHCNav CGO2 (CHC Geomatics Office Version 2.0) and it’s a very reasonable cost of $620 for PP, it also has the UAV module. I’ll have to check with my accountant to see if we have the funds. I may just buy it myself as another backup PPP in addition to the others I have. It has a fully functional 30 day trial period.