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Saving map tiles/imagery

Is there a way to save all the downloaded map imagery onto my desktop so I can just drag and drop that imagery back onto my iPad when I do that same race the next year? So I won't have all that storage taken up on the iPad by leaving it there. Or is it better to redownload all imagery each time?
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Above this we can pull other sources of offline imagery down to 21 zoom and months/weeks old in mass but this bumps up to the $100k to million dollar range very quickly.
For $150 a year the in app consumer grade maps and current method of downloading you will find however to be the best economic way to do so
Again they are just small GPS files and should be backed up outside the LEADNAV app and device if you really care about them.
Do not confuse these however with prepped and stored background map imagery. These are different and are saved and allowed to be "borrowed" for your trip per device that downloaded them. Then deleted. They are not yours to keep...they are yours to save out and borrow for each trip through these low cost In App subscriptions.
If you wanted to "own" these background maps we can do that as well but this will be a big contract so you would need to break out the checkbook! As these companies would want closer to the million dollar range to own outright.
https://leadnavsystems.com/tutorials
Question: If I save a map tile at 16 zoom and then go back and drill down on that 16 zoom tile and save areas within it at 18 zoom, will those 18 zoom tiles download faster since they are overlaying on the 16 zoom? Or is it better to just start at the 18 zoom?
I ask because a lot of times I just need 16 zoom for scouting an area but when I find a good area I want to go back and save imagery in more detail.
Thanks
However be aware...tiles are meant to be saved and “borrowed” for that trip, deleted when done.
This is currently being emphasized now heavily as we negotiate with our current map providers.
We seem to have been breaking their 30 day rule for your offline imagery/maps.
Among their limits of offline maps...
So expect big changes coming very soon. In fact before June 1 which is the deadline we received.
We maybe switching map providers/maps all together as we work through that the next few weeks
I'm talking short periods of use where I download 16 zoom then a day or two later come back and do 18 zoom for more detailed scouting.
So to answer my question, strictly talking about when I am at home and downloading map imagery from wifi, will it download 18 zoom faster with the 16 overlay already there? I'm good with a yes or no, thanks.
Sometimes the tiles may get "stepped on" if this gets a little crazy.... but this typically happens with people trying to use Advanced subscription to save way too many micro tiles. This can cause loading confusion...
But running fewer larger Pro pack tiles you can absolutely do this.