There are no contraindications for the aSISt application to work with the free version of the Oracle database.
The free available version is: Oracle Database Express Edition (XE) Release 11.2.0.2.0 (11gR2).
Link to Oracle website:
Link to documentation on the Oracle website:
https://docs.oracle.com/cd/E17781_01/install.112/e18803/toc.htm