yeah the problem is that the last ipads and phones have ridiculous resolution but the text does not resize. An example:
The letter T is 5 pixels wide. That means, it takes 5 dots on the screen from side to side. If the dots on your screen (pixels) are big, you will see a wide T. In the old days, up to the iphone 3gs, from side to side of the screen there was 480 pixels total. Then the resolutions improved and on the same size of screen, you've got 960 pixels. That means that pixels were actually half the size to be able to fit on the same physical space.
So if your T was one inch wide, it would be now half inch.
Then... ipad retina display came out. It has a ridiculous high resolution: 2048 pixels from side to side. That means that now the T is 1/4 of an inch.
I'm making up the number for the size of T, but you got my point, the letter is 1/4 the size it used to be.
On my end, I have to check the size of your screen and resize it so that it keeps being the same physical size while increasing the pixels. But I forget stuff... while your terrain, airplanes and bridges were considered, i forgot to resize the labels of the planes. That's why they are small. They will be fixed but it's not something I can do over email
Hopefully 4.4.43 will have the fix.