SimpleAnalysis (SA) is an analysis framework in C++ designed to run on the output of event generators (generator-level information, or truth) which is used in most ATLAS Supersymmetry (SUSY) results. Similar in scope to Rivet, SA is a software framework running on data formats belonging to the ATLAS Data Model (Derived Analysis Object Data, or DAOD files). It provides various helper functions for complex kinematic variables typically used in SUSY analyses, encapsulates custom efficiency maps, and contains additional utilities for serializing more complex analysis techniques such as Multivariate analysis, Neural Networks, Boosted Decision Trees. The outputs can be used to compute truth acceptances and selection efficiencies for HEPData publishing, and evaluate sources of theory systematics. For more details, see our documentation at https://simpleanalysis.docs.cern.ch/.