Sector 2.3 has been submitted to the app store. This fixes the cause of the main crashes in the app - memory usage and multithreading.
The mapping code has beein completely re-written to draw the map much more quickly and efficiently, using far less memory. This means the map will display more quickly, you’ll be able to scroll more smoothly, and the app as a whole will be more stable and less likely to crash. I’ve also taken the chance to tweak some of the presentation of map elements, to make things closer to canonical Traveller maps whilst still retaining the high level of information density unique to Sector maps.
The calculation of trade routes was also a cause of bugs and crashes, and this has been cleaned up. There should now hopefully be no crashes cause when the app calculates trade routes between systems.