The iOS application is updated to Version 4.5 and it has some nice features and bug fixes.
We were not satisfied with the code that gets the available space for each account. Thus, we rewrote itand now, it runs a lot faster!
On devices running iOS 13, the code that gets the photos from the Album was not working smoothly. We updated that code and now we do see all photos.
Finally, we had discovered an issue with the code that backs up two folders. In particular, if during this process we close the application, it is very likely that the next time not all files would be transferred. We changed the algorithm for backing up two folders so that this code will always works correctly.