PTSUG

PTSUG (formerly Portosic OS) is a mobile operating system created and developed by Theorysonic for TheoryPhone, TheoryPhone Mini, Portosic Touch, TheoryTablet Mini and TheoryTablet devices and formally TheoryPDA devices.

Originally unveiled in 1996 for the TheoryPhone and TheoryPDA (as a replacement for old TS-UGOS for TheoryPDA), PTSUG has been extended to support other Theorysonic devices such as the Blue King Color (1996), TheoryPDA Style (March 1999), Portosic Touch (January 2005), TheoryTablet (January 2006), and TheoryTablet Pro (June 2013).

History
The development of Portosic OS for TheoryPhone dates back to 1993.

In 2011, Theorysonic released a entry-level consumer lite version of Portosic OS called Portosic OS Lite (now PTSUG Go) used for TheoryPhone Mini and TheoryTablet Mini lite versions starting with version X3.5.

Features

 * Red Star web browser
 * TheorySync
 * TheoryMusic
 * TheoryMedia

Version history

 * Portosic OS (1996)
 * Portosic OS 2 (1999)
 * Portosic OS 3 (2002)
 * Portosic OS 4 (2004)
 * Portosic OS X (2006)
 * Portosic OS X2 (2008)
 * Portosic OS X3 (2010)
 * Portosic OS X3.5 (2011)
 * Portosic OS X4 (2012)
 * Portosic OS X5 (2014)
 * Portosic OS X6 (2016)
 * PTSUG X7 (2017)
 * PTSUG AE (2018)
 * PTSUG X8 (2019)

Reception
The PTSUG has positive reviews and commercially successful. It has a huge library of games and software.

Usage share
PTSUG is the popular mobile operating system.