IBM SPSS is paid software. Legitimate use requires an authorized user license, a concurrent license for organizations, or a subscription. Key Features of SPSS Statistics 19
Portable versions found on third-party sites are often unauthorized modifications. These can carry significant security risks, such as malware or unstable performance, and may lack critical released by IBM. Licensing: IBM SPSS Statistics 19 - Portable
If you need to use SPSS Statistics without a long-term commitment or high upfront cost: IBM SPSS Statistics 19 Brief Guide IBM SPSS is paid software