Dipsy Troller is an app to interactively get the length of trolling line initially for the Dipsy Troller de Luhr Jensen and some others divers from the same company.

As fishermen, we have all opened our fishing box to find that the user data of the divers have been soaked and is unreadable or that we can't find it. It happened to me and to my fishing buddy, so I decided to write this app. The truth is also that to find the right length considering all the factors: the size, the ring, the line, the plates... while driving the boat, putting lines to the water, trying to not hook ourselves, looking at the sonar, trying to get the thermocline depth, adding waypoint when seeing fishes, listening radio for other reports is difficult to say the least. 11 years ago, smartphones were only starting to be in all fishermen pocket but now it is clearly in all pockets. 

Dipsies have a very simple data table, while the two values per cell, with or without the ring, make it clearly more difficult to read. But some of the other divers have larger and more complex data tables with tens of columns and rows and even many pages. Now that apps are omnipresent, it was the right time to do another version with more divers.