personally, I don't see any of the web based options as "in the field" solutions.
as mentioned, unless you have a helper who is listening to you tell them the information to enter into the cellphone, it's going to be a nasty mess trying to run a cell phone in the middle of inspections.
personally, I like to keep a digital voice recorder and read off everything that has to do with the inspection.
Later, I can play back the info and enter it onto the computer. Or, better yet, sometimes I have helpers in the beeyard who are in charge of writing down all the pertinent info on paper which can then be entered on the computer later.
on a sit at the computer basis, the benefit of hivetracks is that unlimited yards and hives are free.
but they only take Langs into consideration ( for the time being at least).
Beetight includes other types of hives, but you only get 6 free hives then you have to pay an annual fee for unlimited after that.
if you are a hobbyist with 6 or less hives that include top bar hives, your likely best choice is beetight.
if you only have Lang type hives, and don't want to pay anything, hivetracks might bee the way to go.
for me, the cell phone access is a complete non issue and wouldn't use it if I had a cell phone that could.
Big Bear