Bradesco, a leading Bank Institution in Brazil, used 5 mobile applications developed by me, starting on 2008.
Since mobile platforms faced a huge upgrade during the last 10 years, the first projects had Windows Phone and Windows CE platforms as target.
After Android conquered a relevant market share, newer projects was developed targeting Android, but due to the poor Android API at the time, the mobile development was accomplished using Qt and C++ only.
All solutions included the development of C#/Asp.net SOAP webservices, cryptography, file transfers and compression. Some included camera, geocoding, barcode reading and sqlite.
It was mostly used by their technical employees to identify failures in their ATMs around the Country.
More info about Bradesco at www.bradesco.com.br