Both are very good thermal modules.
It makes no sense to buy TE-Q1 Pro because basic TE-Q1 can measure 150*C with no problem...
So comparison should be: Therm-App (19mm f/1.1) vs TE-Q1 Plus (13mm f/1.0)
With Therm-App you will get narrower field of view which is better for outdoors while TE-Q1 Plus has wider lens which are better for close range inspection...
Price is a factor too. Therm-App is 1000$ while TE-Q1 Plus is 600$ (if you can get it directly from manufacturer i3system).