In defence of CrewLounge PILOTLOG I spent an afternoon transferring it from mccPILOTLOG to a 64 bit Mac Pro Catalina IOS. It took some reading and re-reading of support documents but it is now working fine. With some new features not available before on mccPILOTLOG. If you had a lifetime subscription the €74? €94 changeover does bite. But hey it does work as advertised.....so far!