towards Subsurface 4.7.5 and Subsurface-mobile 2.0.2 for iOS and Android

Robert Helling helling at
Tue Dec 5 00:04:47 PST 2017


> On 4. Dec 2017, at 19:13, Dirk Hohndel <dirk at> wrote:
> I see more than a dozen people are testing Subsurface-mobile on iOS.

quick report: I have given it a spin on my iPhone. Once more, I am pretty impressed. I would say: It mostly works.

I equipped both OSTC Sports that I have here with a new battery (every time I take them out of by bag the battery is dead). To my surprise both came to life (even the one where I had thought the pressure sensor had died and had prevented it from booting in the past). Starting Subsurface-mobile on the phone and going to the download menu immediately showed one address (but no name and the address appears to be different from what it shows on the desktop), I did not have to scan or even wait. And it downloaded the dives without any problem, it’s just a bit slow (as others have noticed already).

The second, however, never appeared in the drop down menu (I just double checked I can connect and download from both computers on the desktop). But I attribute that to my ignorance to how the pairing is supposed to work.

I also tried the phone to record GPS fixes (I corrected a mistranslation in the German localisation already on transiflex). It asked for permission to record fixes in the background. And it did. But only a few:

This is the result from letting it run continuously in the background (at least I never explicitly stopped it). The good news is that I could not find any influence on battery life. But the bad news is that it apparently decides to stop recording after a while (maybe when the executable gets swapped out of memory?). BTW now you all know where I live and where I work…


Robert C. Helling     Elite Master Course Theoretical and Mathematical Physics
                      Scientific Coordinator
                      Ludwig Maximilians Universitaet Muenchen, Dept. Physik
                      Phone: +49 89 2180-4523  Theresienstr. 39, rm. B339

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