1. I'll let someone who uses Lightworks answer that.
2. The one you may be thinking of was 123d Catch from Autodesk. Unfortunately its no longer available. I think they have moved it into their other programs, There is one program called Autodesk ReCap. When one looks on the web page it only lists the pro version, but apparently after using the trial, if one doesn't subscribe, it reverts to a limited functionality free version (I've not tried it)
There are other free programs but up to now I haven't had chance to try them. I have two on my computer, COLMAP and VisualSFM (which seems to be a more popular program), both require a second program like MeshLab to complete the process and are not definitely just 'upload and done'. Microsoft used to have a program, but again its been discontinued as far as I know. The is also one called 3DF Zephyr, which is also a free version of their 'paid for' one' with limited functionality.
All that said, it will be trial and error, some may work for what you require, some probably won't.