Symbian

The phone operating system before the iPhone. It came out of Psion's EPOC and by 2006 it ran most smartphones in the world, nearly all of them Nokia. It was opened up as free software in 2010, far too late: Nokia dropped it in 2013.

4
Releases
Official Site
Latest Release
Nokia Belle
Release Date
2011-08-01
license
Propietario
LTS Versions
0
Supported
0
Nokia Belle[EOL]
Release: 2011-08-01End of Support: 2016-01-01
Symbian^3[EOL]
Release: 2010-10-01End of Support: 2011-08-01
S60 5th Edition[EOL]
Release: 2008-10-01End of Support: 2010-10-01
Symbian OS 9[EOL]
Release: 2005-03-01End of Support: 2008-10-01