BI Demantra created a fully integrated custom .NET mobile solution using Xamarin. We also created a restful and SOAP service layer to extend a custom billing solution in a secured manner.
Datebase was on SQL Server streched to Azure SQL platform. Additionally, master data was centralized to Master Data Services.
ADFS was used as the authentication provider, which was token encrypted.
Also a mobile app was published to several mobile platforms so that users can securely log in and access their applicatoins.