That's because they offer ignition functionality in the free app now - they have to keep it in the store for updates, but they don't want people using that as new users. The free app does a great job.
Logmein is great if you NEED the help connecting through local routers and networks, but in a situation like work where I am already on the network I will use RDP instead of Logmein. Logmein has to make the round trip to their servers and back to the machines being connected, RDP connects over the local network in that case you would would see less latency and probably better throughput which would provide a smoother experience.
I use Wyse pocket cloud for all RDP connections at work and then I use Logmein to connect to my motherinlaw's house so I don't have to port forward or anything. Really like the Pocket Cloud UI.