Sis2 is an Android app developed by Guido Ticona Hurtado.

Sis2 first became available on 15 Jul 2014. It is estimated that Sis2 has been downloaded between 10000 and 50000 times from the Play Store.

Sis2 v4.0 requires the following permissions:

Allows applications to open network sockets.

Allows an application to read the user's calendar data.

Allows an application to write the user's calendar data.