You can purchase the load calculator on this website for short money. It's not approved ACCA but it gets close enough for amateur calculations. For professional load calcs there are two primary programs. Wrightsoft and Elite. We use Wrightsoft and have for many, many years with excellent results but the cost of entry for the full system is a choker. You can start with fewer modules and work you way up as time goes on if you choose. I have no experience with Elite except to know it too is ACCA approved.
If YOU want change, YOU have to first change.
If you are waiting for the 'other guy' to change first, just remember, you're the 'other guy's' other guy. To continue to expect real change when you keep acting the same way as always, is folly. Won't happen. Real change will only happen when a majority of the people change the way they vote!