Either you want to provide complete protection to the data on your Smartphone, Laptop or your computer against any attempt to steal or tamper with them. In that case you simply need to subscribe to the SST© BASIC license.
First, here is the tutorial of SST BASIC license.
Or you want to ensure total protection not only to your data at rest in your Smartphone, Laptop or your computer but also to the transfer of any message, any document, then you must subscribe the SST© FULL license. First, here is the tutorial of SST FULL license.