TN5250 is a terminal emulator designed for the AS/400, also known as the IBM iSeries, a midrange server geared towards the business environment. This program allows users to access an AS/400 system from their iPhone. Before purchasing the full version, users can try TN5250 Lite for a trial experience.

The software offers a plethora of features including support for all standard 5250 emulation features, SSL/TLS for secure connections, zoom and scroll functionality akin to the Safari browser, auto login, voice input, and compatibility with hardware barcode scanners and camera scanning. Users can customize colors, access clipboard functions, utilize different EBCDIC code pages, and benefit from hotspot capabilities.