I've used it many times without issue. And a time or two it showed me as being further away than i really was. It seems to have some relationship to when your phone last requested a location. On those occasions where that data is close by it may use slightly outdated GPS data. A couple tips I use to avoid or mitigate this:
- I usually take one as I arrive to the shop and a second when I leave. When I do the report, I try the arrival code first. On those rare occasions that it isn't close enough, the backup code from when I left (taken in the identical position as I sit in the car ready to leave but maybe a half hour later) has always been usable for me.
- I avoid "test firing" the geoverify app from across or down the street prior to arriving at the shop. On my first use of the geoverify app I parked down the block at a gas station and ran a code to make sure I knew what to expect. Then I drove to the shop and ran a second one. The second code turned out to be no good. The phone had (I think) just given the app the recently-acquired location it had in memory from the test rather than pulling a new one off of the chip. So now I never do that. I don't ask for a code for any reason within a half hour or so period before I expect to need one that counts.
I think there may be some correlation between the performance received and the quality of the various phones, as well as a correlation between the GPS settings on the phone. Some phones actually have a GPS chip that can pinpoint the location, and others just have the ability to simulate that type of data by triangulating from the cell towers that are in range. The prior method is much more accurate. Inexpensive phones often omit the GPS chip as a way to save cost in the final product, and use the cell tower triangulation method exclusively. I use a major name flagship model of phone, generally, and set my GPS accuracy to the most accurate setting available using both chip and cell tower methods. But even with both of those in my favor I occasionally need to use that second "when I leave" code instead of the arrival code.
Edited 1 time(s). Last edit at 01/26/2020 10:04PM by JustForFun.