Developed for the mail room of one of Australia's big banks.
The app was used to track internal mail deliveries, and involved a dedicated VB.NET app on a Windows Mobile device to track signing for the deliveries, and a PC-based C# service to sync with the mail room's database when the devices were returned to the mail room.
Initial development took approximately 4 weeks part-time, sometime around 2011.
Further work to create the local synchronization service after more traditional sync methods were blocked by strict internal network policies took another 2-3 weeks.
VB.NET, C#, SQLite, Excel DB