Given the broad nature of your query, here are a few potential directions:
For Hobbyists & Learners:
Possibly yes, if you are willing to hunt for a legitimate trial version. The educational value of learning an older, efficient backtester is high. However, you must accept the security risks and lack of support. costx 6.8 free download
Why are thousands of people every month searching for a free version of CostX 6.8? The reasons are threefold: Given the broad nature of your query, here