Hi Noriko, the Wayfarer app is a standalone app for scanning and submitting Wayspots to our map. Niantic also offers the Lightship AR Platform which is a development platform for AR projects that includes its own set of scanning and VPS capabilities. You can learn more about the different products here and here. I hope this helps you choose the tool that is right for your needs.
No worries! It can be a bit confusing, so I don’t mind clarifying! Wayspots are locations and scans are meshes generated that depict that location. Wayspots are like an address and scans are like a generated photograph of that address.