HMm; I think you are talking about software for Audiometers as opposed to fitting software for hearing aids. The hardware is so expensive that DIYers don't usually use Audiometers.
Unfortunately, widex compass software is causing problems. I need to rem.That's why I need the new version of Callisto suite, the old version is causing problems.I may have opened this topic in the wrong area. Can you help me?
No, your topic is not in the wrong area. It's just that we don't keep track of REM/Real Ear Measurement hardware and software. It is sooo much more expensive that we don't use extra REM equipment such as this Aurical Freefit system. There may be other/cheaper ways to solve the specific problem with fitting your Widex hearing aids.
For those who are curious, here's a demonstration of how to use this REM system. Watch this→ Linked Video starting around the 4-minute mark.