Pin Mode allows you to view the property and contact information before adding the lead to your database. On the other hand, the Tap-to-Add mode lets you easily add properties after a single tap so you can move on to add more properties.
Which should you use?
It's a personal preference but you can try both to see which one would suit you better.
How to switch from Pin mode to Tap-to-Add, and vice versa?
Open the DealMachine app.
Tap the small map icon at the top right corner.
Toggle on "Tap-to-add properties" to enable the Tap-to-Add mode and toggle it off to enable Pin mode.