Apps for tractor speed?

[newfarmer]

Looking for an app to rough gauge my speed/confirm my speed. Hopefully to stay more consistent because sometimes I am not real sure I’m staying focused and suddenly think I’m in nascar and need to be consistent for spraying

 

[Nrharris]

Looking for an app to rough gauge my speed/confirm my speed. Hopefully to stay more consistent because sometimes I am not real sure I’m staying focused and suddenly think I’m in nascar and need to be consistent for spraying

I used to use the navionics app that worked pretty well. There at least used to be a free version and paid version. I used the free version.